383L+ Mono with Astrodon filters?

[naskies]

Hi,

I currently have a William Optics FLT-132 scope (132 mm aperture, f/7) and I'm considering getting the following for it:

* Atik 383L+ Mono camera
* Atik Electronic Filter Wheel 2 with 9 position, 1.25" carousel
* Astrodon Tru-Balance Gen 2 E-Series 1.25" LRGB filter set
* Astrodon 5 nm H-alpha 1.25" filter, or 3nm H-alpha + 3nm NII
* Astrodon 3 nm OIII 1.25" filter
* Astrodon 3 nm SII 1.25" filter
* Geoptik Canon EOS lens -> T2 adapter

Does anyone know if there will be a problem with this configuration? I've checked the back focus specifications and it looks like my Canon EOS lenses should work with the 383L+ via the Geoptik adapter.

Thanks!


Cheers,

Dave

[naskies]

Hmm actually it looks like the 383L+ plus EFW2 exceeds the back focus of Canon EOS lenses, so I'll have to find something else.

[Konihlav]

you can get SXFW with 36mm disk:
http://www.teleskop-express.de/shop/product_info.php/info/p4603_Starlight-Xpress-Filterrad-Einsatz-fuer-7x---36-mm-ungefa-te-Filt.html
this is link just to the replacement disk, but you can get the complete FW with this disk too:
http://www.teleskop-express.de/shop/product_info.php/info/p4755_Starlight-Xpress-mot--USB-Filterrad-fuer-7x36mm-ung--Filter---T2.html

the 31mm filters are still compromise. 36mm works even for F/3.6 or so :-) maybe more w/o vignetting depending on your chip size...

Pavel

[Konihlav]

OK, so you want to use it with Canon EOS lenses? then sorry, there's no commercially available thing that would couple mono CCD with filters and EOS lens. I have myself a special unit build on a custom design so as I can do this. The Geoptik adapter is great, but tooo thick and doesn't allow for filters (my version has filter drawer inside).

good luck.