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FA 28 2.8 vs Sigma 30 1.4 ex dc

Simonmac
Posted 17/06/2022 - 19:09 Link
Hi folks

Any thoughts on these lenses.

I will be using one or none of them on a K5iis.

The Pentax seems to have good reviews whereas the Sigma has mixed ones.

I am sinply looking for an equivalent 40-50mm focal length. I cannot strecth to Ltds.

Any other suggestions most welcome!

All the best
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LennyBloke
Posted 17/06/2022 - 20:20 - Helpful Comment Link
Hi Simon

Both very capable lenses - the Sigma is a newer lens (design?) and is very capable, and the Pentax is from the early 90's (so a 30 year old design) but IMO an excellent evolved design. I struggled to get consistent results with my 30mm Sigma, although when it delivered it was very good (and the faster aperture is very useful in some situations). I have always been pleased with the understated FA28/2.8 and for some reason it seems to sell for less than the earlier F series (which lacked the AL element).

I still have an FA28 in my arsenal, the Sigma went a long time ago.

Hope that helps a little
LennyBloke
Simonmac
Posted 18/06/2022 - 15:36 Link
LennyBloke wrote:
Hi Simon

Both very capable lenses - the Sigma is a newer lens (design?) and is very capable, and the Pentax is from the early 90's (so a 30 year old design) but IMO an excellent evolved design. I struggled to get consistent results with my 30mm Sigma, although when it delivered it was very good (and the faster aperture is very useful in some situations). I have always been pleased with the understated FA28/2.8 and for some reason it seems to sell for less than the earlier F series (which lacked the AL element).

I still have an FA28 in my arsenal, the Sigma went a long time ago.

Hope that helps a little

That is a great help Lenny. Thank you very much.
www.flickr.com/photos/simac/
www.500px.com/simac
Jonathan-Mac
Posted 20/06/2022 - 12:53 Link
I had the Sigma for a while and, like Lenny, got some inconsistent results, but then that was on a K200D which didn't have the most reliable AF anyway. There is a newer version but they're hard to find used as they were introduced only a short time before Sigma decided to end production of all K-mount lenses.

You might want to consider an HD FA 35mm f/2. I've found mine to be loads better than the cheap 35mm f/2.4 and it makes a good standard prime on APS-C. I can't comment on the older SMC FA 35/2, which has the same optic design as the new HD version, but I do recall early in my Pentax days that it was thought to produce somewhat dull photos. Perhaps the coating change was all it needed.
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses

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