28mm primes

Hi All,

For some time I've been thinking about a suitable APS-C prime lens that provides a similar field of view to my M40/2.8 pancake did on film. The obvious choice is 28mm, not least as this matches the diagonal of the frame.

I have an M28/2.8, which is fine although a tad slow for a 'standard' lens (and an 'A' or AF one would be more convenient). I've heard the M28/3.5 is better, but I'm looking for something around f/2 is possible, was there one?

The FA31/1.8 Ltd. is interesting but well outside my budget.

John.

Having had a look at Sigma (something I overlooked), they seem to have several options:

24/1.8 EX DG Macro
28/1.8 EX DG Macro
30/1.4 EX DC HSM

Has anybody compared the 28/1.8 & 30/1.4 (I don't need macro and the 30/1.4 looks interesting).

John.

There are various Vivitar 28/2s, but from what I see, they aren't at their best at f2 so the advantage is lost IMHO.

The sigma 30/1.4 or 28/1.8 may be worth a look. I prefer my DA35 but it's a bit long for what you're after.

It looks like the Sigma 'DG' tag suggests these lenses cover the full frame, can anybody confirm this applies the Pentax mounts?

No the 30mm vignettes on FF (interesting effect though!)

The 30mm is a DC lens (crop)

Oh yeah!

I'm fairly sure the other 2 are full frame, so maybe DG does denote FF.

Nice personal impression of the 28mm here. http://www.techtheman.com/2009/10/sigma-28mm-f18-ii-in-mid-autumn.html?m=1

The 24mm is not a macro (1:2.7 magnification) nor is the 28mm (1:2.9 magnification) so you can safely ignore the 'macro' marketing print

I'm sure that you can find plenty of reviews on the web for any of those lenses

I have a 30/1.4 and love it. highly recommended.