Originally posted by jct us101 I would recommend starting a thread about this in the Pentax lens board, instead of on someone else's photo post, just start one on this board.
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Specifically to your point, he's using a film camera, which has a 16mm wide angle and no crop factor. With the crop factor that goes up to the lens having a 24mm wide angle instead of actually being 16mm wide at the wide end of it.
Originally posted by A-z Hi, interesting pic. Intriguing that you chose that flat plaque to be the center point.
Question: I'm thinking of buying the DA 16-45mm - would this be the field of view I'd get at 16mm?? Can't believe it would be that wide
Jct is correct, your best bet would be to start a thread on the question in the lenses section. I'll answer your question here anyway though. This lens on a Digital camera translates to a 24mm field of view. While the curvature of the lens can give a smiling or frowning horizon, it won't be anywhere near as extreme as in this shot. On a digital SLR, it does make nice wide angle lens though.. Straight on it does tend to bend near objects...
These were taken with my InfraRed modified K20d (these are the only examples I have at the moment).
When used as a general landscape lens with no near vertical objects, the FE effect is very minimal..
The DA16-45 is a linear lens from 16-45mm and at 16mm will not behave the same way. I long ago sold my DA16 so cannot give any comparable photos. However, the one sentence answer to your question is, 16mm is 16mm is 16mm. On a 1.5x crop DSLR, it shows the same view as a 24mm on a 35mm camera (but is NOT a 24mm lens).