View Full Version : CP4500 vignetting
GR Triever
Saturday 10th January 2004, 17:57
I've just purchased a CP4500, and my initial reaction is that the vignetting is much more severe than with my old camera (Toshiba PDR-4300). However, I like the CP4500's ability to do things that my old camera won't do.
Can somebody post a pic of the vignetting as seen through the 4500 w/ no zoom, 20x on the scope (I use a Zeiss 85T*FL), using a commercial adapter? This way I can see if the vignetting is normal, or if I need to do some work on a new adapter. IF you prefer, PM me with the pics.
Thanks,
GR
Doug Greenberg
Saturday 10th January 2004, 21:07
I can't provide you with the photos you are asking for, but can I ask what happens when you zoom the 4500 to 2x or further? I ask because there are a number of camera/eypiece/scope combos that will vignette at the widest-angle zoom setting, but this is not seen as a big problem because you can zoom forward to eliminate the vignetting. This is the situation with my current setup, a William Optics 24mm. eyepiece, Coolpix 995 and Pentax PF80-ED.
That said, I understand that it's preferable to have no vignetting at all.
tracker
Saturday 10th January 2004, 21:13
This vignetting is a concern of mine too. Im hoping to purchase the cp4500 to use with my Nikon Spotting scope (20x eye piece, 60mm objective lens)
Obviously dealing with GR Trievers, query first, i would like to know whether i should even bother getting the cp4500 to use with my 60mm scope?
Sorry to butt in,
tracker
GR Triever
Saturday 10th January 2004, 22:07
Here's the deal: With the PDR-4300 and the scope at 20x, I saw AFOV with some minor vignetting at the corners. With the 4500, on the first adapter try, I had to zoom at LEAST to 2x camera zoom at 20x to get rid of it. I just spent the better part of the day working on a new adapter and now the vignetting is better, but still not on a par with the old camera.
HOWEVER, the number of quality photos has gone up immensely with the CP4500, due to one thing... Focus Confirmation! I hadn't realized that my eyes were so out of touch with actual camera focus instead of scope focus. So, I can live with a little vignetting.
Tracker, I'd recommend the 4500 for no other reason than the focus confirmation. I can't wait to really dig into the 4500 menus to see what else this little puppy can do. Just make sure that you get the camera lens as close to the eyepiece lens as possible.
tracker
Saturday 10th January 2004, 22:22
Tracker, I'd recommend the 4500 for no other reason than the focus confirmation. I can't wait to really dig into the 4500 menus to see what else this little puppy can do. Just make sure that you get the camera lens as close to the eyepiece lens as possible.
Thanks for the advice, and tip, GR Triever... :t: Im hoping to purchase the adapters for this kit from Warehouse Express. But im still at the exploratory phase of these digicams, and what is actually available.
tracker
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