Just a quick question, are (were) you using a high quality filter in the front, e.g., Hoya, B+W, OEM?
One of the filters I used is a Prinz Optics, which never caused any problems shooting 35m film, just shooting digital. http://www.prinzoptics.de/en/company/index.php?ID=4 [ January 26, 2006, 10:11 AM: Message edited by: Lenny53 ]
On my DSLR this is actually caused by using filters like a polarizer, or UV. I have removed all filters from my lenses and this has reduced the problem. Steve
Any guesses as to why removing the filters would reduce the green spots? Could we be dealing with a reflection off the front of the lens rather than the rear? I need to make some tests. Really an interesting development--er--suggestion!
According to one of the posts on the Nikonian board the reflection is happening inside the camera. Because the lenses have different coatings on their elements them they do not reflect back but the filters, unfortunately, do.
I wonder if you use a high quality multi-coated filter like Hoya SMC or B+W Multicoat, Heliopan, etc. would the effect be eliminated. A lot of quality problems are due to cheapie filters on the front.
yes this issue is due to the lens coatings and filters. For me I use all "L" glass so no filters but if I were you I would try shooting with out them to see if the shots change. Also the quality of your filters can make a difference. Get the best you can buy if you can. Some are plastic and very poor quailty glass. Steve
I am not using "L" lenses, but a very high quality Canon lens. The reason I use a filter is to protect the front elements from any scratches or lenses. And yes, I am using a high quality filter as well. Harold
I have a 77mm Hoya Super HMC UV filteron my big zoom which I haven't tried yet on the digital. Hopefully, I will give it a shot or two soon.
I doubt an exterior filter would cause the demon lights. I was talking about the Bayer and anti-aliasing filters inside the camera just before the sensor. These are apparently quite shiny, so they will bounce light toward the back of the lens, which is then bounced again, causing the demon lights to be recorded by the sensor.
That is the Dorval VIA Station but it is not on Cardinal. The station is on the south side of the tracks while Cardinal, where the hobby store is, is on the north side of the tracks.
That is the Dorval VIA Station but it is not on Cardinal. The station is on the south side of the tracks while Cardinal, where the hobby store is, is on the north side of the tracks. </font>[/QUOTE]Sounds like a good spot to go railfanning, though
