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The Dai-Ichi 80mm f15 has landed - Help required..!

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#76 Kokatha man

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Posted 12 January 2018 - 07:55 PM

<"Hit me with some more icons dude.">

 

Err, it's not the icons "dude" - they're just expressive adjuncts to what you're meant to "read" - with the last one in my last post saying something along the lines of "peace dude!" - your point is certainly valid to yourself, you've made that abundantly clear & the only reason why you've posted in my thread at all tbh - but not for me!...as I said originally, you would've been best saying nothing in someone else's thread if you harboured such strong "thoughts" & only came on to criticise me imho.



#77 jcruse64

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Posted 12 January 2018 - 08:47 PM

You can laugh all you want with your little icons but I know my point is valid. I have several period pieces, all optically excellent (that's why I have them), all as they were when I got them, and none of which will be butchered. Hit me with some more icons dude.

 

 

-drl

 

Your point of view is valid, from your point of view (and any others coincidentally sharing it). This isn't an argument over whether or not F=M*A. Let it go; you've been throwing veiled insults at the guy for a page or 2, and everyone gets how you feel about his approach to setting his scope up.To continue to push it like this on a thread that is not even about one of your own scopes really does a disservice to this forum. I think he's been more than even-handed in his responses back to you.

 

I'm saying this with much respect; Let it go...

 

I see this all the time on Mopar forums, when someone will "restore" a classic 60's or '70's Mopar, and set a LS power plant in it. Mopar fans lose their minds. I don't like swapping Chebby parts into a Mopar either, but it's that person's property, money, and vision. And, it's their right to do with it what they will. In the end, it's just a thing, no matter how much we get attached to things.


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#78 Kokatha man

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Posted 12 January 2018 - 09:37 PM

jcruse - I appreciate your comments but if I'm honest I got annoyed by drl's (sorry, I don't know his actual name) posts & I threw them back by joking about "fakes" etc...I don't want anyone getting angry which appears to be the case, I'm a bit of a joker tbh - certainly eccentric..!

 

I truly just wanted to do what is best for us (Pat & me) with this scope & it is meant to be one that I will use & use when we break from planetary imaging during the nights at times...& for that reason I want to be able to have it how I want it to be...

 

Funnily enough my biggest worry is telling Milt that I've redecorated his little customised-finder which he took some time to match to the grey of the Sears 6333 he sold me, albeit a non-original item anyway: I just "wanted" it on the Dai Ichi Kogaku & had to match its' colour-scheme to it!

 

I'll let him know soon...

 

Actually, apart from chronicling the work per se on it I thought that some of my posts gave some folks possibly insights into little "tricks" to make bits or dis-assemble scope parts, like profiling pvc laminates for getting finder bases to conform to different radii, or pulling recalcitrant parts apart etc: never intending to tell anyone how to "suck eggs" & also learning plenty of new tricks for an old dog here as well! waytogo.gif

 

I'll continue to post in this thread if I think it relevant but honestly just want to let that side of things go - so "Peace!" & let's all move on. smile.gif

 

 


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#79 jcruse64

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Posted 12 January 2018 - 10:06 PM

I like your scope(s), and enjoy this thread. Lots to learn on this forum from everyone, at least for me. Hope you are enjoying your scope and your summer!


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#80 Kokatha man

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Posted 12 January 2018 - 11:46 PM

Thanks brother! smile.gif

As for summer, I just replied to someone on the East Coast of the US who emailed me earlier today...we don't have the extremes he's talked about over there of late, but from 40°C+ one day to half that the next, with a torrential downpour about 2 hours ago it sure seems crazier than any recent summer where normally the heat is really starting to be turned up by now!
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#81 earlyriser

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Posted 13 January 2018 - 05:44 AM

 

You can laugh all you want with your little icons but I know my point is valid. I have several period pieces, all optically excellent (that's why I have them), all as they were when I got them, and none of which will be butchered. Hit me with some more icons dude.

 

 

-drl

 

Your point of view is valid, from your point of view (and any others coincidentally sharing it). This isn't an argument over whether or not F=M*A. Let it go; you've been throwing veiled insults at the guy for a page or 2, and everyone gets how you feel about his approach to setting his scope up.To continue to push it like this on a thread that is not even about one of your own scopes really does a disservice to this forum. I think he's been more than even-handed in his responses back to you.

 

I'm saying this with much respect; Let it go...

 

I see this all the time on Mopar forums, when someone will "restore" a classic 60's or '70's Mopar, and set a LS power plant in it. Mopar fans lose their minds. I don't like swapping Chebby parts into a Mopar either, but it's that person's property, money, and vision. And, it's their right to do with it what they will. In the end, it's just a thing, no matter how much we get attached to things.

 

Good analogy. I'd say in this case it's kind of like replacing a points ignition system with an electronic one. Nothing lasts forever, and if swapping out a few old parts for new ones keeps something old in service longer, or makes it easier to use so that it is brought out more often where it can be seen by others, all the better. 


Edited by earlyriser, 13 January 2018 - 05:44 AM.

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#82 Kokatha man

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Posted 13 January 2018 - 07:00 PM

 

Good analogy. I'd say in this case it's kind of like replacing a points ignition system with an electronic one. Nothing lasts forever, and if swapping out a few old parts for new ones keeps something old in service longer, or makes it easier to use so that it is brought out more often where it can be seen by others, all the better. 

 

 

...that reminds me of my old man, a Ford man nearly all his car-owning life who bought a new (Australian) ZG Fairlane LTD in 1975, full-luxury model & probably the culmination of his Ford & car ownership...351ci. V8 with points ignition: he did all his own servicing & I still remember arriving one day & seeing his legs sticking out from under the car, working on it...he was well over 80 at the time & I thought to myself something along the lines of "crikey, you old bugger!" - that must have been around about 1999.

 

He used to complain about having to set (& replace) the points constantly on that little distributor shaft which I don't think was terribly accessible anyway - with 8 lobes on it from memory: when he switched to electronic ignition that task simply vanished! smile.gif



#83 jcruse64

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Posted 13 January 2018 - 07:48 PM

I actually figure to go to EI on my '73 Dodge truck, soon. Will be hanging on to the OEM dizzy, just to have the original around for when my widow sells it, lol. I know there are a ton of cool, "Down Under Only" Mopar vehicles out there from the 40's-80's, at least. Same with Fords????

 

Might have missed this; are you going to try any solar viewing with this one?



#84 Kokatha man

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Posted 13 January 2018 - 08:21 PM

Yeah, Ford Australia & GM under the "Holden" marque were our iconic vehicle manufacturers producing their own Australian designs/models right up until the last Holden plant closed in South Australia last year. (2017, Ford a couple of years earlier)

These events were met with a lot of public protest as both manufacturers had been in Oz since the early days of automobiles but had also run as autonomous branches of the US parent firms since WW2...Chrysler Australia packed it in decades ago after teaming up with Mitsubishi for a number of years, Mitsubishi going it alone but I think I'm correct to say that we now only assemble car components into whole vehicles now. frown.gif

Exactly - we will be trying the D-I Kogaku out on the Sun...I think I have a Baader solar film made up for an 80mm scope that should fit! smile.gif
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#85 Kokatha man

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Posted 14 January 2018 - 11:27 PM

...a bit off-topic but with the mention of Dodge trucks & electrics, Australia got a lot of Dodges in the earlier (pre WW2) days of autos, the Dodge "Flying 4's" from the 1920's were one such vehicle that could be found everywhere, but especially out bush on farm properties...

 

One of the few 12volt electrics at the time if I'm correct - they had these massive "North-East Electrics" starter/generators driven by a big duplex chain completely enclosed within the engine block...pumping juice into them they operated as a really gutsy 4-pole starter motor...then once the engine fired they pumped out plenty of amps at 12V+ for the electrical system.

 

Without wanting to start up anything further (couldn't resist the pun!) these starter-generators were often stripped from these Dodges at the end of their lives to use as motors or wind generators - I have what's probably a "classic" Le Jay US manual from between WW1 & WW2 that belonged to my father...it detailed all sorts of home & farm devices & how to build them, even giving the details for re-wiring armatures & field coils of auto electrics so that they could be used as motors or generators in 12V & 32V outputs...the Dodge units delivering 750W at 32V. 

 

Ford "T" & "A" model generators featured strongly as well because many of those old autos used 4-pole units due to the slower-revving motors & these were ideal...this manual had electric bikes & scooters etc also with complete plans - even propeller-carving instructions for the wind-generators!

 

Unfortunately, just as in the US & elsewhere many great makes & models of cars & motorbikes ended as scrap or landfill here: I saw many great British & American bikes &/or parts in dumps in the old days...sad really, but with everything it is part of the scheme of things & why to me anyone who maintains or utilises old equipment gets my thumbs up however they do it & whatever...but then again I'm an oldie... frown.gif


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#86 Kokatha man

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Posted 15 January 2018 - 06:50 AM

Set the Dai Ichi up tonight to see how everything goes with the mods plus after giving the EQ6 a makeover...well, new paint job after stripping the tripod down & replacing with thick-walled 1.5" stainless legs for the lower section of the telescopic legs.

 

This should give it much better "refractor-mount" versatility with it standing much taller than before, but still very strong - stronger I'd say with these much more robust lower sections. (900mm lengths)

 

It'll be interesting to see how the Dai Ichi mount works once I've refurbished it - despite a lot of cloud drifting across constantly & the seeing probably not very good, we got a very good view of M42 indeed with the LVW 17mm at just over 70X...lots of cloud structure visible & it wasn't truly dark tbh! waytogo.gif.


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#87 Kokatha man

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Posted 22 January 2018 - 01:01 AM

...the Dai Ichi hasn't gone away yet - in fact when the original mount is fully-refurbished I'll probably post here again..! shocked.gif lol.gif

 

Fundamentalist attitudes notwithstanding, today I collimated the replacement focuser by cutting out & fitting a very precise & snug-fitting cardboard disk (80mm) with a pin-hole at dead-centre: 2 to 3mm adjustment of the laser beam's positioning at the objective end using the collimating grubscrews fired the laser right through the middle of this pinhole...it'll be interesting to see if I notice the difference - with the C14 & planetary imaging, accurate in-camera collimation is fanatically adjusted each & everytime we image, but this might not be so important here. lol.gif

 

Dai-Ichi-Kogaku-Collimation#1.jpg

 

Dai-Ichi-Kogaku-Collimation#2.jpg


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#88 AaronM

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Posted 22 January 2018 - 01:51 AM

Hello Kokatha man,

 

gratulations for your scope - it seems you got an Daiichi telescope from a better time.

 

If I remember correct, today Daiichi/Daiiti produce only cheap "toy"-telescopes as our Galakuma confirmed here :

 

https://www.cloudyni...facturer-alive/

 

I wonder if they ever made an 4" refractor f/15 ??

 

I hope you have saved the original focuser ?

 

Kind regards, Michael Aaron from germany


Edited by AaronM, 22 January 2018 - 01:58 AM.


#89 Kokatha man

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Posted 22 January 2018 - 04:38 AM

Hi Michael - Galakuma commented earlier in this thread (Page 3) & from the little amount of evidence available, D-I made some fine scopes & also supplied to Vixen amongst other manufacturers...eyepieces for Celestron also I believe.

 

I think if you read his comments carefully in that old thread you linked to, his "toy" comments refer to nowadays.....

 

He commented back then: <"Name of Daiiti was not popular in the list in the history of a telescope.
But Daiiti supplied a telescope with Towa identically in a company of most as an OEM.
Vixen, Kenko, Carton, .etc."> 

 

By "not popular" I take it to mean that they were not common (they certainly appear to be quite rare btw) but he went on to say at the time that they <"supplied Towa, Vixen, Kenko, Carton, etc"> as an OEM - that is, as an "Original Equipment Manufacturer" so I think this attests to the quality of their production...which is reflected in everything I have found in my own D-I Koguka! waytogo.gif

 

Without wanting to say too much more about old telescopes & restorations Vs modifications, of course I kept the old focuser, which I refurbished & actually improved to the best I could without doing anything at all except replacing the focuser lock screw with a different one that used a Teflon-tipped bushing & replacing the felt packing - it is there if I ever have any need to re-install it.

 

I did drill two 4mm holes in the ota but I see that as completely trivial...reading the classic scopes pages one constantly comes across holes being re-filled, tubes being dent-knocked & filler applied, parts fabricated, corroded castings reworked etc, etc: I'm not a purist, which I've stated many times but I do know that if I placed the original focuser back in & filled those 2 holes & re-painted the tube it would still be far more kosher than many of the scopes resuscitated here & no-one would be able to tell the difference...& this is in no way disparaging to any of the aforementioned practices or the restored telescopes! wink.gif

 

I will restore the EQ mount to original as I said - another aspect of the Dai-Ichi that displays the quality that they put into this scope (& not present on quite a few of the similar scopes of Towa etc...regardless of whether D-I were or were not the OEM lol.gif ) is that both the RA & Dec drives are full worm & wheel mechanisms on my mount - many other "vintage" Japanese mounts only used lesser mechanisms for the Declination drives... wink.gif

 

On the matter of my collimating it this afternoon I cannot say whether I did an "on-axis" or "off-axis" collimation - the objective cell is held in by a type of panhead setscrew but in engineering a countersunk setscrew locates any assembly much more definitively than a panhead.....so that despite the fact that the 2.5mm wall thickness ota was originally parted in a lathe so that both ends are true & square during manufacture, I cannot be certain whether the objective is sitting square (orthogonal) even though I know in fabricating the fittings & machining the replacement focuser that end was very square before adjusting the grubscrews during my collimating today... 

 

But I think that is a pretty moot point btw in the scheme of things - even "off-axis" collimation should theoretically improve the performance, although in the world of refractors of this ilk I am yet to see if this makes much difference... hmm.gif


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#90 Kokatha man

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Posted 24 January 2018 - 11:43 PM

...I'm interested as most reading the various comments re refractor qualities & the testing of them by visual/star tests Vs optical bench & what to/what not to look for considerations...

I'm very much a practical person & by that I mean I like to see/evaluate everything personally (probably a bit of the cynic/individual in me here also) but I've never done any bench testing since I was a boy 60 years ago grinding & polishing my first 6" scope mirror. wink.gif

I'd like to set up one of these DPAC arrangements if I get the time (so much to do, so little time!) but I do know a thing or 2 about C11's & C14 SCT's - as a hi-res planetary imager who collimates each & every time on a star "in camera" I've come to appreciate just exactly what a plethora of influences there are on Diffraction Rings & Airy Disks both from "atmospherics" as well as the individual peccadilloes of those scopes, my own in particular.

Within the constrains of each of their optical characteristics, which I am intimately aware of, I have no doubts that I can elicit the optimum performance from my current C14 (given the seeing conditions presented) affirmed by several AA "firsts" with Saturn, Uranus & Neptune.

When it comes to refractors I'm more a "babe in the woods" with first-hand experience...especially old, long-focal length ones - but at least I had to be content with my "bench-collimation" & so not have to faff around endlessly out under the sky this morning! lol.gif

 

To this end I wanted to test this little D-I Koguka in ways that I am experienced enough to have strong opinions re any scope's optical capabilities...that is via planetary image outcomes - but as someone who is well-versed in the enormous impact seeing has, it can be a drawn-out & frustrating approach..!  wink.gif

 

This morning we dragged ourselves out in very windy conditions that are the bane of our home's location - extremely strong "katabatic" gully winds ripping down the escarpment onto the narrow coastal strip where we live...a sure sign that seeing will be %$#@!

 

Smiling to myself about that old refractor adage of maximum contrast due in part to no CO as I tried to find the barest hint of Jove's 2 main bands or low albedo markers, the NEB & SEB, I realised the seeing was simply terrible - manual focus instead of fine micron-adjustments via a Digital Readout didn't help either as it seemed that even the slightest finger pressure either way caused the incredibly ephemeral appearance of the faintest ghostings of those bands to disappear...& then take ages to get them to re-appear again...the most challenging & difficult focusing I have ever attempted - even if it is one of my fortes!

 

This is simply seeing way below anything worth bothering to image in tbh...but we wanted to test this little old vintage frakky: using a 1.6X Antares at just over 2X at about f31 (2500mm) plus a 99% dielectric 2" diagonal (something we would never use btw, but helping to make the train more compact) we utilised a red longpass (610nm) to try & help cope with the rotten conditions.

 

Not wanting to try colour imaging atm...I want to see how these achromats perform using a mono camera & r-g-b filters re the colour renderings from this method down the track - but I'll need far better seeing for that! wink.gif

 

Regardless, under such challenging conditions I think this result quite simply outstanding, especially as the only way I could focus was when I got those infinitely fleeting moments when an almost in-discernible ghostly pair of bands appeared...& if this moment stretched for more than a second or 2 & tempted me to try & tweak for something more, everything immediately turned to mush..! lol.gif

 

The GRS (low contast with this filter) is almost on the C.M. here...despite the conditions & outcome we have picked up a wealth of information for the next time - but in far better seeing if we're going to get up so early again in the coming weeks! wink.gif

 

j2018-01-24_19-41_ir_dpm_D-I-Kogaku.png


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#91 shredder1656

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Posted 25 January 2018 - 04:51 AM

...I'm interested as most reading the various comments re refractor qualities & the testing of them by visual/star tests Vs optical bench & what to/what not to look for considerations...

I'm very much a practical person & by that I mean I like to see/evaluate everything personally (probably a bit of the cynic/individual in me here also) but I've never done any bench testing since I was a boy 60 years ago grinding & polishing my first 6" scope mirror. wink.gif

I'd like to set up one of these DPAC arrangements if I get the time (so much to do, so little time!) but I do know a thing or 2 about C11's & C14 SCT's - as a hi-res planetary imager who collimates each & every time on a star "in camera" I've come to appreciate just exactly what a plethora of influences there are on Diffraction Rings & Airy Disks both from "atmospherics" as well as the individual peccadilloes of those scopes, my own in particular.

Within the constrains of each of their optical characteristics, which I am intimately aware of, I have no doubts that I can elicit the optimum performance from my current C14 (given the seeing conditions presented) affirmed by several AA "firsts" with Saturn, Uranus & Neptune.

When it comes to refractors I'm more a "babe in the woods" with first-hand experience...especially old, long-focal length ones - but at least I had to be content with my "bench-collimation" & so not have to faff around endlessly out under the sky this morning! lol.gif

 

To this end I wanted to test this little D-I Koguka in ways that I am experienced enough to have strong opinions re any scope's optical capabilities...that is via planetary image outcomes - but as someone who is well-versed in the enormous impact seeing has, it can be a drawn-out & frustrating approach..!  wink.gif

 

This morning we dragged ourselves out in very windy conditions that are the bane of our home's location - extremely strong "katabatic" gully winds ripping down the escarpment onto the narrow coastal strip where we live...a sure sign that seeing will be %$#@!

 

Smiling to myself about that old refractor adage of maximum contrast due in part to no CO as I tried to find the barest hint of Jove's 2 main bands or low albedo markers, the NEB & SEB, I realised the seeing was simply terrible - manual focus instead of fine micron-adjustments via a Digital Readout didn't help either as it seemed that even the slightest finger pressure either way caused the incredibly ephemeral appearance of the faintest ghostings of those bands to disappear...& then take ages to get them to re-appear again...the most challenging & difficult focusing I have ever attempted - even if it is one of my fortes!

 

This is simply seeing way below anything worth bothering to image in tbh...but we wanted to test this little old vintage frakky: using a 1.6X Antares at just over 2X at about f31 (2500mm) plus a 99% dielectric 2" diagonal (something we would never use btw, but helping to make the train more compact) we utilised a red longpass (610nm) to try & help cope with the rotten conditions.

 

Not wanting to try colour imaging atm...I want to see how these achromats perform using a mono camera & r-g-b filters re the colour renderings from this method down the track - but I'll need far better seeing for that! wink.gif

 

Regardless, under such challenging conditions I think this result quite simply outstanding, especially as the only way I could focus was when I got those infinitely fleeting moments when an almost in-discernible ghostly pair of bands appeared...& if this moment stretched for more than a second or 2 & tempted me to try & tweak for something more, everything immediately turned to mush..! lol.gif

 

The GRS (low contast with this filter) is almost on the C.M. here...despite the conditions & outcome we have picked up a wealth of information for the next time - but in far better seeing if we're going to get up so early again in the coming weeks! wink.gif

 

attachicon.gif j2018-01-24_19-41_ir_dpm_D-I-Kogaku.png

WOW!



#92 PeriodicTrends

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Posted 25 January 2018 - 06:02 PM

Please please please don't tell me that is a single frame....or I'm gonna start crying and sobbing for realsies.
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#93 Kokatha man

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Posted 25 January 2018 - 07:48 PM

No Chris - of course not! If that was representative of a single frame in that seeing I'd be packing up the C14 & 18" Newt! lol.gif

 

The really surprising aspect to me is just how much detail is picked up in an onscreen image that barely revealed the NEB & SEB as the 2 ghostly markings that flitted in & out of view both before & after I was semi-convinced I had the best focus: focus, after you have attended to any optical pre-requisites being the 3rd most critical factor after the seeing & optical collimation/temp. stabilisation...

 

The lack of sharpness is utterly understandable in those conditions...but to bring out so much banding - let alone festoons - in that seeing is quite remarkable indeed: I do have some experience imaging with refractors, having "cut my teeth" with a modern 6" f8 achro...& also used the 5" apo triplet a few times now & then...but for 80mm in that seeing I am truly surprised & look forward to the types of nights that we do our "normal" planetary imaging in...

 

The good thing is that it can easily be set up next to our main instruments & when we imaged this the other morning it was easy to PA such that at 2500+mm f/l the planet stayed on the sensor's 300X300 ROI without any corrections at all.

 

Also look forward to Mars when it is around 24"+ with this Dai Ichi Kogaku...in our real dotage it might be our main instrument! wink.gif


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#94 Kokatha man

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Posted 27 January 2018 - 06:13 AM

...continuing to determine just how good are the optics on the D-I Kogaku (I'll eventually start spelling it correctly, consistently! lol.gif) in the only practical way that I know best & which gives the most obvious indicator of its' capabilities... wink.gif

 

Went out to the edge of the Murray Mallee just for last night & this morning using both the Dai-Ichi & C14...also took some f30 Moon captures in the evening which I'll post when I get around to processing.

 

Unfortunately, when about to take the final Moon capture last night I slid the camera & extension tube back out further from the barlow I was using to increase the image scale a bit more to really test the Moon shots...I did not realise I had slid it too far out past where it was fully-gripped by the brass compression band & only discovered this when packing things up this morning... frown.gif

 

The up-shot was that the camera was sitting crookedly in the barlow for the last Moon shot & all 3 Jovian captures this morning (I'd left it set up overnight) so we were in effect shooting with a badly-out-of-collimation arrangement...

 

Seeing was a bit better than "average" but not what I'd call "good"...nonetheless the Ganymede transit which we caught with the C14 as it completed the 2nd half of its "skim" across Jove's Northernmost disk as well as its' egress, was also picked up in the Dai Ichi Kogaku's image here at ingress - despite those handicaps... smile.gif

 

Focusing on such a small disk is extremely demanding, but this couple of old dogs learnt a few additional tricks this morning! wink.gif

 

I'm really looking forward to our next outing - hopefully no accidents & "good" seeing..! fingerscrossed.gif

 

Q75Nm70_Jup_184311_L_260118_SP-Astm-FIN.png

 

 


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#95 Kokatha man

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Posted 27 January 2018 - 11:09 PM

...I'm the first to admit that I'm a funny fella - sometimes when I post in my thread here I think "why am I doing this?" but then again I look around at various other threads here in the "Classics" section & think "naah! - I'm probably right where I belong a lot of the time!" lol.gif

 

The Dai Ichi Kogaku is a rare bird...from the very few that have turned up to my knowledge...the EQ mount with both RA & Dec worm & wheel drives...& what seem to be most excellent optics - & despite old scopes not fetching terribly much money, finding this in Brisbane & getting it down here to Adelaide for a total of just over $100US seems like one of the real bargains in this "hobby" to me, despite this collecting caper appearing to be for slightly strange folks! wink.gif

 

Here's 3 of the Moon shots from the other night (26th January) where the camera etc were square in the barlow - unlike the Jupiter shot above! wink.gif

 

I'll have to post each image in a separate post because of their size...only jpegs & only put through AS!2 & CS4...no R6 wavelets 'cos I'm busy on a lot of other stuff & didn't want to spend too much time on these. smile.gif

 

Moon_105825_L_260118_CS4_OnlyMon.jpg


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#96 Kokatha man

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Posted 27 January 2018 - 11:13 PM

The 2nd Moon shot - seeing was "fair" in my estimation although the Moon is following a low trajectory at present with all these taken at below 40°...not the best "framing" here tbh! lol.gif

 

Q85_Moon_110643_L_260118_CS4Only-Mon.jpg


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#97 Kokatha man

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Posted 27 January 2018 - 11:14 PM

Last one - for now! rofl2.gif

 

Moon_111432_L_260118_CS4_OnlyMon.jpg

 

 


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#98 Kokatha man

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Posted 28 January 2018 - 04:31 AM

...after the evening/morning imaging sessions early yesterday morning as we were starting to pack up. (hadn't realised the camera was askew in the Dai Ichi yet...)

 

Here's the results from the C14 after we switched from the D-I here: https://www.cloudyni...nymede-transit/

 

The image above in Post #94 shows the ingress of Ganymede's transit of Jove using this fine 80mm f15 vintage Japanese refractor at roughly f31 (2600mm) whilst the link to the "Solar System Imaging..." forum post shows an image at egress, along with an animation covering about 1/3 of the transit captured with the C14 at roughly f15. (5300mm)

 

Under the computer table is the 12 volt extension power box with 3 merit plug sockets connected to the van's heavy-duty battery bank, we have about 10 metres of heavy duty power speaker twinflex capable of easily carrying the 50 amps the plugs etc are rated at. (I was told when we purchased the caravan that the makers would void the warranty with the batteries we placed in the trunk, but it didn't phase us because they were resting on an enormous C-section X-member of the chassis...)

 

The EQ6 carrying the Dai Ichi runs off a heavy-duty jump-starter which is very old but still delivers plenty of amps at the required voltage...you can just see it under that tripod almost obscured by the table.

 

On the table is the digital readout box for the Moonlite (oh! the ease of it compared to manual-focusing of the D-I lol.gif ) plus a small inverter...normally we'd used dc-dc converters but the laptop I'm using is annoying due to the system it employs (so-called "smart charger") so we use this "sine wave" inverter: the lappy is a "high end" gamer but despite running quite a few other appliances off of the battery bank & them being nearly 5 years old now, we always have plenty of power: when we are away from "mains" power we do however take a portable generator to run the van's aircon in scorching weather... wink.gif

 

The secret to good battery life isn't paying "through the nose" for expensive batteries, but simply making sure you restore their charge asap & checking/topping up the electrolyte with distilled water btw...& of course keeping the terminals etc clean. wink.gif

 

This was an early morning "pack up & out of there" occasion before the heat really started to bite, which it does in the Mallee Country - we've just had 3 days of 110°F+ & even as I type the rain is splattering down to signal some respite here at home in what is known as "The driest state in the driest continent."

 

Dai-Ichi-Kogaku&CelestronC14_Palmer.jpg


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#99 memento

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Posted 12 April 2018 - 05:53 PM

The pictures you get with this scope, especially Jupiter, are absolutely amazing. Great optics and also great skills ... I am now really looking forward to picking up its smaller brother the Dai-Ichi Kogaku 60mm in a few days. :)

 

Also interesting to see how various parts are just kinda the same for the two scopes. I am very sure that your focuser is exactly the same as mine, but yours has just an extra "adapter" piece (on which the finderscope is mounted on) between the focuser and the tube. And I am sure that this adapter piece has exactly the same outer diameter as the 60mm scope's tube, so that they could use the same casting for the finderscope mount.

 

I'm not sure yet if the equatorial is the same, or if the 80mm has a beefed up version ...

 

Thomas



#100 Kokatha man

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Posted 12 April 2018 - 07:22 PM

Thanks Thomas - we head out bush in Oz every week or 2 for our planetary imaging with the C14 but have taken the D-I Koguka a couple of times for some quick ep obbing - it never fails to attract interest if someone sees it & when I talk about our main work (planetary imaging) they all say something like "but that one looks better - it looks like a real telescope!" pointing to the D-I. lol.gif

 

Most of our restoration work is on hold atm including that of the mount for this scope - I hope your's turns out a "good'un" & you get much enjoyment out of what seem to be fairly rare scopes: it takes pride of place in my cluttered studio atm & is a constant reminder of a young me drooling over these sorts of instruments! wink.gif




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