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RKE 28mm on the way! What to expect vs. 27-36mm's?

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#401 ibase

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Posted 14 June 2012 - 09:40 PM

Here's a tone comparison between a regular stock Celestron 25mm plossl vs. the Edmund "Scientific" RKE 28mm on the 2012 Venus Transit:

Posted Image

Shots were taken afocal with the same digicam, a low-cost Kodak Easyhare using an Orion 127mm Mak 6/6/2012; the tone difference is apparent.

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#402 mmclure

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Posted 15 June 2012 - 12:34 AM

Yours is a special one then; any idea what year it hit the market?


Nary a clue. It came with a used Astroscan (in fact seeing the odd-looking RKE in the auction photos is part of why I decided to bid on the scope.) My guess (and thats all it is, a guess) is that it's one of the very first RKEs before they switched to the familiar orange band. Like the 1 1/8" it does not have any filter threading.

#403 ibase

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Posted 15 June 2012 - 11:46 AM

Okay, thanks.

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#404 Daniel Mounsey

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Posted 16 November 2012 - 02:45 AM

At first, I thought Bill P. was interested in our handheld microscopes but NO! he used it to look at a 28mm RKE! :foreheadslap:

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#405 BillP

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Posted 16 November 2012 - 03:58 PM

:lol: Yup...never leave home without it :lol:

Actually...an amazingly handy tool for examining eyepieces :waytogo: ...including how dirtly an eye lens remains sometimes after what one thinks was a cleaning :lol: (Don - it has made me finally appreciate ROR).

#406 ibase

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Posted 16 November 2012 - 07:27 PM

Lol.. thanks Daniel for posting, now there's a face that goes with such an illustrious name in the EP forum! :bow:

Is there a link for the hand-held microscope? If it's good enough for Mr. BillP, so it will be for me. Great idea to make sure my RKE28 is absolutely dust free on the surface before putting it to use and enjoy the floating views. :)

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#407 greju

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Posted 16 November 2012 - 08:32 PM

I have always found a magnifying glass to be more than adequate. But for really poor eyesight the microscope might be needed I guess. :grin:

#408 ibase

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Posted 16 November 2012 - 08:37 PM

Thanks, yes, I know, but have had an eye out for these hand-held microscopes for some time now (for other non-related purposes), and this provided a good excuse to finally get one. :)

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#409 DaveJ

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Posted 17 November 2012 - 09:21 AM

At first, I thought Bill P. was interested in our handheld microscopes but NO! he used it to look at a 28mm RKE! :foreheadslap:


Hi Daniel,

When you say "...OUR handheld microscope..." I assume you mean "Celestron handheld microscope." With that assumption in mind, I checked the Celestron site and can't find anything like that except for a couple digital models. The one that BillP is holding doesn't look like a digital one SO this begs the question: Do you have a link to these? :help:

#410 orion61

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Posted 17 November 2012 - 10:48 AM

I knew about only three - Edmund Scientific 1 1/8, Edmund Scientific Co. RKE (orange banding), and Edmund Optics RKE (orange banding).


Add #4 - Edmund Scientific RKE (no orange banding) which is what I have. The body looks like the 1 1/8 but it's definitely an RKE (and is labeled as such.)

Those came out in 1976 or 78' if memory serves me seems they added the Red/Orange band with the 79' Astroscan
introduction..

#411 mark8888

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Posted 17 November 2012 - 11:20 AM

At first, I thought Bill P. was interested in our handheld microscopes but NO! he used it to look at a 28mm RKE! :foreheadslap:


Hi Daniel,

When you say "...OUR handheld microscope..." I assume you mean "Celestron handheld microscope." With that assumption in mind, I checked the Celestron site and can't find anything like that except for a couple digital models. The one that BillP is holding doesn't look like a digital one SO this begs the question: Do you have a link to these? :help:



Not sure, but I think it's probably THIS guy.



#412 DaveJ

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Posted 17 November 2012 - 12:24 PM

Not sure, but I think it's probably THIS guy.


Thank you, Mark and Daniel (via PM), for the link. I've just ordered one. I'm already thinking of other uses beside highly OCD eyepiece cleaning. :grin:

#413 mark8888

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Posted 17 November 2012 - 01:17 PM

Not sure, but I think it's probably THIS guy.


Thank you, Mark and Daniel (via PM), for the link. I've just ordered one. I'm already thinking of other uses beside highly OCD eyepiece cleaning. :grin:


haha cool... yeah I'm also considering buying one, but I don't think I'd use it on eyepieces, actually. I kind of don't want to go there. :grin:

#414 ibase

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Posted 20 November 2012 - 09:49 PM

I knew about only three - Edmund Scientific 1 1/8, Edmund Scientific Co. RKE (orange banding), and Edmund Optics RKE (orange banding).


Add #4 - Edmund Scientific RKE (no orange banding) which is what I have. The body looks like the 1 1/8 but it's definitely an RKE (and is labeled as such.)

Those came out in 1976 or 78' if memory serves me seems they added the Red/Orange band with the 79' Astroscan
introduction..


Good info, thanks!

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#415 ibase

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Posted 20 November 2012 - 09:56 PM

Just placed an order for the digital hand-held microscope here which is cheaper by $5 from the previous link posted. For the cost of a plossl, not really expecting much, but it may provide the means for examining the many EP's in the stall with microscopic scrutiny. :D

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#416 killdabuddha

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Posted 21 November 2012 - 12:41 PM


We love the effect for BVing. Dunno whether we'd have been as happy at their new $85 price tag vs. the $62.50 that we and most have paid. Probably so, but that's quite a jump?

#417 Dave Ittner

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Posted 21 November 2012 - 12:54 PM

It's an outrageous jump - 36% increase. But if the demand for the series is the reason and it doesn't drop off those prices will probably stick. Another possibility is cost of manufacturing has increased (ie glass) forcing them to raise prices. I wish I knew.

Prices for used RKE's could creep higher ~ $55 or more?

IMHO I am pretty sure overall demand for all astronomical gear is down (including eyepieces). I am seeing prices drop for used TeleVue Ethos eyepieces. Have you folks noticed that?

#418 ibase

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Posted 21 November 2012 - 04:27 PM

We love the effect for BVing. Dunno whether we'd have been as happy at their new $85 price tag vs. the $62.50 that we and most have paid. Probably so, but that's quite a jump?


Yes, agree, it's quite a jump and wouldn't be surprised if those on the fence decide not to take the plunge. Must have been all the attention the RKE28 was getting here on CN that made the demand go through the roof that drove the price up, but that's just a speculation.

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#419 ibase

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Posted 22 November 2012 - 08:17 AM

Prices for used RKE's could creep higher ~ $55 or more?


Possibly more if the $85 tag price sticks, used EP's are usually 20-25% less of retail price.

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#420 ibase

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Posted 10 January 2013 - 02:18 AM

Encouraged by seeing BillP above with the digital microscope together with his RKE28mm on hand, I've ordered and have received one:

Posted Image
Celestron Deluxe Handheld Digital Microscope

:jump:

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#421 mark8888

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Posted 12 January 2013 - 03:21 AM

Encouraged by seeing BillP above with the digital microscope together with his RKE28mm on hand, I've ordered and have received one:


What you think of it? Does it work well? I'd be interested in hearing about how it works on non-astro targets, like things lying around the room, specimens from nature, whatever.

#422 ibase

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Posted 12 January 2013 - 10:28 PM

Posted Image
Celestron Digital Microscope freshly unpacked

Posted Image
With an AA battery (not needed) for scale; connected to laptop's USB port


Very sleek, am liking it! And exactly the things I had in mind too for use of this digi micro scope as you've mentioned, so upon reading your post, have opened up the sealed pack, chucked in its USB plug connector to my laptop port and it powered-up, six bright white leds lighted up, it's working! (Always anxious if ordered-from-the-US accessories work right off the box, because it's hard & expensive to ship back defective unit halfway around the globe). Next comes the installer disk, into the tray it goes, a very long read, and.. Houston we have a problem! The laptop can't read the disk! :foreheadslap:

Hopefully, will straighten this out and report back, thanks.

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#423 ibase

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Posted 13 January 2013 - 08:58 AM

Using another video software - xwAstroCapture, I was able to make the microscope work, using a dollar bill as sample. Took a pic of the emblem on the obverse side of the bill:

Posted Image
One Dollar greenbuck

Then used the Celestron microscope to zoom in on one of the stars:

Posted Image
1st light image of dollar star using the Celestron digital microscope

This is just a 1st try, the focusing mechanism and operation requires some getting used to. Overall, I'm impressed with this Celestron digital microscope, considering its relatively low cost (< $50).

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#424 mark8888

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Posted 13 January 2013 - 09:49 AM

Awesome!! Looks like a good amount of minute detail is visible. Ya for around $50 it seems like a great toy...

#425 ibase

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Posted 13 January 2013 - 12:42 PM

Indeed, a great optical toy, and enjoying it! The above star was captured using 1280x960 setting. Below, image is sharper at 640x480.

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Celestron Microscope Manual (& an AA battery for scale):
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Letter "S" in "ENGLISH" above, under the Celestron microscope at 800x600:

Posted Image

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