'New' lens for electronic finder

avandonk · #1 22-09-2006, 11:28 AM

Picked this lens up on Eb.. for a good price about $100 AUS. It is a C mount Canon 17 to 102 mm zoom F2. This lens is for 16mm film so the quality is very good for a zoom. Works very nicely as a finder with the GstarEX. Two pics showing M8 (center) at 17mm and 102mm. This is what is seen on the screen in real time. I am going to try a UV/IR or LPR filter next as I think IR and light pollution is washing out contrast. Makes life a lot easier finding dim objects without dark adaptation.

Bert

leon · #2 22-09-2006, 11:42 AM

That's a great set up you have there Bert, and i thought i had a few wires hanging of my scope.....

Leon

ving (David) · #3 22-09-2006, 12:51 PM

looks pretty flash bert. how long is the exposure on the images of yoou finder there?

avandonk · #4 22-09-2006, 01:16 PM

The camera can integrate up to 128 frames this corresponds to 2.6 seconds. The pics were taken at this setting Ving.

Bert

ving (David) · #5 22-09-2006, 02:09 PM

sweet

rogerg (Roger) · #6 22-09-2006, 02:21 PM

Very nice setup. It'd be nice to have that electronic finderscope capability too, with the little LCD right there. Although I guess I'd be using it on a computer so would be better off with a webcam instead, but still it's a nice idea.

Roger

iceman (Mike) · #7 22-09-2006, 03:14 PM

Looks great Bert, that's quite a setup right there.. very Borg like.. it's transforming into who knows what!

If all this helps you to get even BETTER widefield images, then I can't wait to see the results.

Lee · #8 22-09-2006, 05:04 PM

Excellent idea for equatorials - may save having to rotate an OTA as often! There's more nebulosity in your finder M8 shot than my astrophot from 10*1 minute shots