Atik Cameras Forum

Support (Please note, this is primarily a user forum, for direct Atik support, please email support@atik-cameras.com) => 3- and 4-Series Cameras => Topic started by: KevC on June 24, 2012, 09:07:05 pm

Title: What is needed for Canon lenses and 383L Mono?
Post by: KevC on June 24, 2012, 09:07:05 pm

I want to do some wide field imaging with my Canon lenses and 383L mono. I found the Canon adapter at Geoptic, http://www.geoptik.com/en/scheda-prodotto/mechanical-accessories/144/30a189/214/30a189.html and I was wondering what else I need to make it work.
Has anyone here used Canon lenses with Atik cams? How were the results? Do I need any spacers for proper focus?
Thanks a lot!
Kevin

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: bwa on June 24, 2012, 11:20:21 pm

Quote from: KevC on June 24, 2012, 09:07:05 pm

Has anyone here used Canon lenses with Atik cams? How were the results? Do I need any spacers for proper focus?

Kevin,

I've used a 428Ex with Canon lenses w/ good success.  You require a spacing of 44mm from the lens flange to the CCD sensor.  On the 428Ex the sensor to front flange is about 12mm, so a T2->EOS adapter plus spacers to give 32mm (or a touch less) is required.

bwa

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: KevC on June 25, 2012, 01:34:01 am

I forgot to mention that I am using the EFW 2. Do you know what the spacing is with the FW in place? Thanks for the quick response.
Kevin

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: bwa on June 25, 2012, 08:16:49 am

Quote from: KevC on June 25, 2012, 01:34:01 am

I forgot to mention that I am using the EFW 2. Do you know what the spacing is with the FW in place? Thanks for the quick response.
Kevin

What is the filter wheel width?  22mm+/-?  Leaves 10mm for an adapter from the FW thread to EOS adapter.  Not too sure if you can accomplish this??

bwa

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: KevC on July 05, 2012, 03:02:54 am

I found and ordered this at OPT. I have the proper adapters to get everything connected. This should do the trick, right? Thanks to all for the help!!
http://www.optcorp.com/product.aspx?pid=345-17694
Kev

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: bwa on July 05, 2012, 03:53:51 am

Quote from: KevC on July 05, 2012, 03:02:54 am

I found and ordered this at OPT. I have the proper adapters to get everything connected. This should do the trick, right? Thanks to all for the help!!
http://www.optcorp.com/product.aspx?pid=345-17694
Kev

Kevin,

Please give us a list of all the items between the front of the 383L, i.e.: what do you have between the sensor in your camera and the flange on your EOS lens?  Do all the pieces add up to 44mm or slightly less?

bwa

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: KevC on July 05, 2012, 04:49:50 am

I have the camera>filter wheel>54mm to T adapter (Atik part, maybe 1mm)> 10mm spacer> Geoptic camera adapter. FW is 22mm plus the 1 mm adapter, plus the 10mm spacer gives me 33mm. I have to measure the Geoptic adapter that I linked in the original post, but I think I am close to exactly 44mm from flange to sensor. Thanks again for the quick response
Kev

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: bwa on July 05, 2012, 06:09:21 pm

Kevin,

Depends on width of the Geoptic adapter but I don't think you're going to need any spacers to get a sensor to EOS flange distance of 44mm?

bwa

Title: Re: What is needed for Canon lenses and 383L Mono?
Post by: KevC on July 16, 2012, 03:27:28 am

I tried with the 10 mm spacer and could not reach focus. I am going to try without the spacer next time and see what I get. I think I will be close without it. By the time I got the spacer off, (stuck) it had clouded up. :-[
Kev