[SOLD] Optec F3.3 reducer

Peter Ward · #1 25-10-2009, 05:31 PM

Clearing out some of my seldom used gear. OPtec F3.3 Maxfield reducer
(2" to T-thread).

Perfect glass, but a couple of slight scuff marks on the barrel from 2" eyepiece holders. I'm guessing $US300 to replace, but $A 200 will keep me (and the wife) happy.

[1ponders] (Paul) · #2 06-12-2009, 06:56 PM

Peter is this made for SBIB with or without filter wheel ?

Mighty_oz (Marcus) · #3 06-12-2009, 07:45 PM

This site has some more info on this item
http://www.optecinc.com/astronomy/nextgen.htm esp the click here bit
Hope this helps

[1ponders] (Paul) · #4 06-12-2009, 10:16 PM

Yes I have been to the Optec site. I already have the 0.5X reducer but the spacing from the chip is critical so depending on what camera is being used and whether a filter wheel is being used will determine what spacers are needed.
http://www.optecinc.com/astronomy/nextgen_order.htm
http://www.optecinc.com/astronomy/nextgen_mounts.htm

[1ponders] (Paul) · #5 04-03-2010, 05:54 PM

bumping Peter

solissydney (Ken) · #6 06-03-2010, 02:13 PM

Hmm, I gather it will not be useful for my Canon 5D DSLR camera on a Celestron Ultima 8inch?

[1ponders] (Paul) · #7 06-03-2010, 02:39 PM

Check here Ken.
http://www.optecinc.com/astronomy/nextgen.htm
The maximum corrected field is only 9mm, way to small for a DSLR. Small CCD only, ST7, ATiK16IC, etc

solissydney (Ken) · #8 06-03-2010, 04:34 PM

I went to that site. It was that bit about the 9 mm field at the image plane I wanted clarified.
Many thanks
Ken