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Field Flattner for ES102 Fcd100

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#1 wilbkr1

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Posted 14 July 2021 - 10:26 AM

Hello,

 

Would like the communities suggestions for a field flattner using an ES102 FCD100.  I am only looking for a flattner,  no reducer.  Your thoughts and suggestions are greatly appreciated.  Thank you!

 

Will be using 4/3 sensors.

 

Basic Specs of the scope.

 

ED102-CF FCD100  f/7 Air Spaced Triplet with Hoya FCD100 optics and Integrated Dew Shield; 714mm focal length; 2.5" HEX Focuser;



#2 B 26354

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Posted 14 July 2021 - 11:02 AM

Well, the Explore Scientific 2" Field Flattener - FFEDAPO-01 is the obvious choice... but after a half-hour online search, no one has one in stock. I got one when I ordered my 102CF almost five years ago, but mine is the slightly-different (10mm shorter) FFEDAPO-00 model. Optically, the newer (55mm) version is identical to the original... and mine produces beautifully-sharp photos with my mirrorless Olympus OM-D E-M1 (Micro-4/3rds).


Edited by B 26354, 14 July 2021 - 11:21 AM.


#3 wilbkr1

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Posted 14 July 2021 - 11:15 AM

I started looking at the Explore Scientific 2in Field Flattener – FFEDAPO-01 and quickly found it out of stock everywhere.  Kinda wondered about alternatives.  But overall your happy with your with the version you have?  Probably just have to wait till I find an alternative or till the Explore FFEDAPO-01 comes back in stock.  Thank you for your feedback.



#4 alphatripleplus

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Posted 14 July 2021 - 12:06 PM

Moving from EAA to Refractors for a potentially better fit.



#5 B 26354

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Posted 14 July 2021 - 12:19 PM

I started looking at the Explore Scientific 2in Field Flattener – FFEDAPO-01 and quickly found it out of stock everywhere.  Kinda wondered about alternatives.  But overall your happy with your with the version you have?  Probably just have to wait till I find an alternative or till the Explore FFEDAPO-01 comes back in stock.  Thank you for your feedback.

I'm perfectly happy with mine... but you may be looking at a long wait. Possible alternatives:

 

https://www.astronom...refractors.html

 

- - -

 

https://www.teleskop...-Anschluss.html

 

...which needs to be used with one of these:

 

https://www.teleskop...ckage-deal.html

 

- - -

 

https://www.hotechus...ategory-s/4.htm

 

https://www.highpoin...tener-sca-fft58

 

https://agenaastro.c...-flattener.html

 

https://telescopes.n...-flattener.html

 

I like the specs of the Hotech. I'd be strongly tempted to go for it... and it's in stock at Telescopes.net!   grin.gif



#6 wilbkr1

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Posted 14 July 2021 - 12:41 PM

Thank you sir!  Checking it out now. 


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#7 wilbkr1

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Posted 14 July 2021 - 03:14 PM

When ahead and ordered it.  Hint.  Camera Concepts is my go to online store.  Had everything I needed in-stock.  Great people!


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#8 B 26354

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Posted 14 July 2021 - 03:25 PM

Excellent! And I agree. I got my ES 102CF from them, in November of 2016.  grin.gif



#9 wilbkr1

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Posted 14 July 2021 - 03:33 PM

Not sure why, but I've had more luck finding those out of stock items.  Just a simple phone call and 10min later they are in the mail.

 

No,  I don't work for them.  Lol


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#10 deepanvishal

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Posted 14 July 2021 - 08:16 PM

Might be late to post here,

 

If you are considering flattener/Reducer, I can confirm that Stellarvue SFFR102 worked excellent for my ED102FCD100. 

To eliminate using compression ring, I purchased a custom adapter from Explore scientific - M48x0.75 Adapter for 2.5 HEX - SKU 625801

This helped with managing some tilt.


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#11 PederP

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Posted 06 September 2021 - 06:16 AM

Explore scientific made a (new?) full frame field flattener for the Explore Scientific ED80 and ED102.

Just bought one I'm hoping to try out tonight.smile.gif

https://www.bresser....ED102-APO.html#




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