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A finder for the APM 100 mm?

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17 replies to this topic

#1 marcd

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Posted 14 June 2018 - 04:27 AM

Hi

So, for my pleasure, I have now, following your advice on this forum, APM 100 mm binoculars with a Binoptic fork and a Manfrotto 161. I'm thinking about the viewfinder.

What finder for the APM 100 mm binoculars?
What is your experience and your opinion for this choice?

Thanks 

marc



#2 edwincjones

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Posted 14 June 2018 - 04:41 AM

I used the Rigel red dot finder for my 100mm and 150mms

edj

Edited by edwincjones, 14 June 2018 - 04:44 AM.


#3 MB_PL

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Posted 14 June 2018 - 05:11 AM

A 50mm RACI makes navigating the sky easy as pie 😀 No neck strain!

#4 TOMDEY

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Posted 14 June 2018 - 05:32 AM

I use this one that came with it. Astoundingly, there is no Logo whatsoever on the thing. It works nicely, can see the sky looking between the eyepieces.  Tom

 

Attached Thumbnails

  • 01.0 Finder 1 60.jpg
  • 01.1 Finder 2 60.jpg


#5 starzonesteve

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Posted 14 June 2018 - 06:11 AM

I am using the same red dot finder as TOMDEY. It adjusts easily and works flawlessly. My only complaint is that the dimmest light setting is a bit brighter than I would sometimes like it to me.

 

The unit makes finding objects simple, fast, and easily repeatable.



#6 rockethead26

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Posted 14 June 2018 - 08:11 AM

I also use the same one shown by TOMDEY. It works great and is made of metal.



#7 oldmanrick

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Posted 14 June 2018 - 08:30 AM

Me too, works well.



#8 Mad Matt

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Posted 14 June 2018 - 10:00 AM

I have that one as well and it is definitely a great value. Eventually I did find that the coating on the reflector blocks out faint stars that are sometimes helpful for positioning. I now use a Baader Skysurfer V which not only can be dimmed a little better but also has better coatings on the reflector that allow fainter stars to still be seen.


Edited by Mad Matt, 14 June 2018 - 10:02 AM.


#9 RickyD85

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Posted 14 June 2018 - 02:11 PM

I also use the Baader Skymaster V.

 

previously used the red dot like the above but the dot was too bright even on dimmest setting, and had a bit of glare in the glass so was not a neat dot.

 

I found the minimum setting on the Baader a bit better, plus it matches my eyepieces as a bonus smile.gif



#10 marcd

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Posted 14 June 2018 - 03:10 PM

I saw the finder as Tomdey's. It is sold by APM.
Thank you for the return on the Baader, less bright ...

I had a  50 mm finder on my old C8 but it seems a bit big and the Rigel too??
marc



#11 GamesForOne

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Posted 14 June 2018 - 03:31 PM

Rigel works fine for me.

 

 

 

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Attached Thumbnails

  • binos1.jpg

Edited by GamesForOne, 14 June 2018 - 03:32 PM.


#12 Nightfly

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Posted 14 June 2018 - 05:41 PM

Rigel works fine for me.

 

 

 

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Does that standard base secure well to the bino handle?  

 

Thanks!



#13 Mike G.

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Posted 15 June 2018 - 03:07 PM

I also have the MRF offered by APM.  it is a bit brighter than desired, and also, the coatings do dim some stars to the point of invisibility.  however, I overcome that by using both eyes - one eye through the finder, one eye around the finder.  it still does a great job of locating objects but what I like the most is that the mounting system allows accurate repositioning after removal since I store my bins in a container.  the finder goes on and off every viewing session and I have yet to re-center it since the initial alignment.  I  also had to make a dew shield for it because the lens dews up.

but, if the Baader Sky Surfer goes dimmer, I might just switch...



#14 CbusRog

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Posted 15 June 2018 - 04:24 PM



I overcome that by using both eyes - one eye through the finder, one eye around the finder.


My understanding is that's how reflex finders are supposed to be used. I've always used them that way. I just ordered the APM for my 100-90 ED, as I was unsure how to mount others without machining a custom base.


Sent from my SM-G935V using Tapatalk

#15 RickyD85

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Posted 16 June 2018 - 08:13 AM

093B5969-CD5F-4300-A667-F6B36226B705.jpeg

 

With the sky surfer V you only have to machine off a few mm's of aluminium to get a tight fit into the small recessed part at the top of the handle, you can then get 1 screw in (buy a 16mm screw so it penetrates deeply into the threaded part of the handle)

Hacksaw, metal file, 10 minutes and it is done.

 

If you get a nice cut across with the hacksaw for the recessed part that is nice and straight, and a tight fit, the finder will not be able to twist round, even if the screw isn't done up tight. Mine is only finger tight for easy removal/refit, and it does not budge when using! 

 

Also painted the underside of the mount with thick rubberised paint (stonechip protector) to isolate the base from the paint coating to prevent damage, with the added bonus of additional grip between the surfaces to prevent turning or twisting.


Edited by RickyD85, 16 June 2018 - 08:24 AM.

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#16 GamesForOne

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Posted 16 June 2018 - 08:15 AM

Does that standard base secure well to the bino handle?  

 

Thanks!

It is an ok fit. I simply passed a bolt through the Rigel base and the hole in the handle and then used a star lock washer and nut on the underside. I put a small plastic cap over the exposed bolt end. It works, although the base can shift a small amount side-to-side if you push hard on it. It seems to stay fairly close to aligned between uses.

 

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Michael Mc


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#17 GrahamDFyffe

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Posted Yesterday, 04:03 PM

Here’s my finder setup for my Obe BT100XL. It does have a standard Picatinny rail which I added a 90°/45° extension which let me mount both a green laser and multi-reticule sight.

 

Finders on Quick Release plate
 
The Picatinny extension rail also has a quick release mechanism which makes it very easy for transportation.
 
Picatinny Quick Release

 

 


Edited by GrahamDFyffe, Yesterday, 04:10 PM.


#18 Gyna

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Posted Yesterday, 05:51 PM

I'm using a Rigel QuickFinder with its base fixed on the hood of a barrel: I can turn it in the more comfortable position, specially aiming near the zenith (I have the 45° version of APM bino).

 

Marco




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