PS: The dark spot is likely just some dust on your screen. You should be able to blow it off. Dust on the mirror generally doesn't show up so much. If there is dust trapped behind your focusing screen you can pull it out carefully with some tweezers and blow the dust out. It just sits in a metal frame. Be careful if you clean the screen and certainly don't touch it with your fingers as you will certainly leave finger prints. Its a good idea to wash them with only warm soapy water since they are just plastic. Alcohol might actually soften them and is not recommended.
On Sat, Mar 28, 2015 at 8:55 AM, Zos Xavius <[email protected]> wrote: > That pattern is part of the screen. The screen is etched plastic and > that is how it works. > > On Sat, Mar 28, 2015 at 5:38 AM, Ciprian Dorin Craciun > <[email protected]> wrote: >> Hello all! (De-lurking for a quick technical question.) >> >> I just got a Pentax K-3, and while toying with it and photographing a >> landscape, I noticed something "weird" in the viewfinder, namely if I >> point the camera at the sky (or a bright source light), I see in the >> viewfinder a faint fingerprint-like pattern, especially on the edges >> of the frame. >> >> In fact I've noticed this only after I've noticed a small dark spot in >> the upper left side of the frame, which I assume is some dirt on the >> focusing screen (as it doesn't appear in the actual photos). (I'll >> closely inspect the mirror today.) >> >> The dirt and the fact that my Pentax K-30 doesn't have this >> fingerprint-like pattern, made me wonder if by any chance there is >> something wrong with my K-3's focusing screen. (Although I found some >> "chatter" on the internet which might suggest that this pattern is >> indeed to be expected.) >> >> Anyone noticed something similar on their K-3? >> >> Thanks, >> Ciprian. >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
