DStudio

@Benarm - Thanks. Must have been added since dpr initially wrote the article.

However, this is typical - it doesn't mean that Pentax and/or Sony mounts aren't coming later. In fact, if you look at...

My Minolta light meter must be really messed up - it never asks me what size sensor or film I'm using!

I seriously doubt the Sigma could beat most Zeiss lenses in the "this image looks beautiful" test. Likewise in comparison to most Leica lenses, as another poster absurdly suggested.

Sigma is the...

I seriously doubt the Sigma could beat most Zeiss lenses in the "this image looks beautiful" test. Likewise in comparison to most Leica lenses, as another poster suggested.

Sigma is the opposite...

Actually it's not revolutional - it's IF and the front element doesn't rotate! ;)

This is all speculative - neither pricing nor mounts have been anounced yet.

f/1.8 is still 1 1/3 stops faster, so you can still shoot with that much less light on the same camera. Whether the noise and overall effect is considered better in the end is the result of...

It's good that you mentioned the 7D, because it's a perfect example of how serious photographers DO use crop bodies!

It's good that you mentioned the 7D, because it's a perfect example of how serious photographers DO use crop bodies!

If this lens can truly deliver the performance it will be unbeatable in many...

This would be good, but Sigma has never matched the quality of the Sony Zeiss lenses I've used, and I doubt they would here either.

In any case, although I wasn't a Sigma fan, the 8-16 I recently...

All the K-5 versions are strongest at ISO 80, of course.

All the K-5 variants are strongest at ISO 80, of course.

Actually it wasn't a trend until after Pentax did it - only Nikon (who deserve most of the credit) came before them, and Pentax was the first to completely remove the filter.

Actually it wasn't a trend until after Pentax did it - only Nikon (who deserves most of the credit) came before them, and Pentax was the first to completely remove the filter.

I agree that in most cases you don't have to fret the moire, but most of my lenses yield noticeably better resolution on the K-5 IIs compared to any other Pentax body.

I find AF-C is improved without the expanded AF area mode as well.

I find AF-C is improved when the expanded AF area mode is off as well.

@jaad75 - on what evidence do you base this remark? My real-world results show otherwise. AFAIK the reduced mass being the reason for the improvement is just speculative - I'd love to see DPR do...

@jaad75 - on what evidence do you base this remark? My real-world results show otherwise.

AFAIK the reduced mass being the reason for the improvement is just speculative - I'd love to see DPR do...

@jaad75 - on what evidence do you base this remark? My real-world results show otherwise.

Additionally, it doesn't seem to have much to do with additional effective EV, but rather defines the...