Originally posted by steve1307 There is no "Sigma f1.8 wide prime pumps my 'nads " thread in the lens club section is there?
No offence to other thread creators but maybe we do not have such Sigma threads because Sigma owners are reasonable?
My Sigma 28/1.8 EX is one of the best lenses I have. And with its close focusing ability it is also one of my most versatile. It is very sharp and can produce very nice bokeh. Not quite an FA 31/1.8 but you can get it for a fraction of the price.
However, I don't create a "Sigma f1.8 wide prime pumps my 'nads " thread.
Originally posted by steve1307 These 3 Sigmas f1.8 are far less popular than the "slower" manufacturer options which are f2.8. they are also less popular than the hyper expensive 24mm f1.4's which Cinon & Nakon produce.
Popularity is not always the best measure for quality.
Many just don't like the size of the lenses and/or want to avoid larger filter sizes. If you want fast glass without too much vignetting, however, there is no way around increasing the diameter of the front element.
Hey, you even have people on this forum that suggest not to get a Pentax DSLR if you are into birding or sports despite the fact that Sigma/Tamron offer great long glass for the K-mount.
Originally posted by steve1307 Could it be that they are crap until about f3.2 anyway, they are massive and plasticky and the 77 or 82mm filters cost a bomb?
Could be, yes, but no they are not crap until about f3.2.
Isn't it great that we have the choice between excellent, fast Sigma glass and competent, compact Pentax glass? Why assume / argue that one of the manufacturers does something wrong?
P.S.: Photozone obviously tested a defective copy of the Sigma 20/1.8. Not sure what the measurements are worth.