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Forum: Pentax DSLR Discussion
01-16-2019, 06:28 PM
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The FAJ 18-35mm lens was made for film bodies, has extra-wide angle FOV, so would work with both FF and APS-C. Both would have plenty of wide angle capability. There's also a very well-built Tokina ATX AF20-35mm f/3.5-4.5 II which has a 77mm filter size. A less expensive version is the Tokina 19-35mm f/3.5-4.5, which is still well-made but with a plastic body, and also has a 77mm filter size. Both tested at 19mm at the short end. Tokina also made a well-regarded ATX 20-35mm f/2.8 pro lens in Pentax mount.
24mm does provide wide angle for APS-C, but not as wide as some would prefer. Like having a 35mm lens on a FF body, which was a very popular focal length for versatility with 35mm film use. If wishing for a zoom lens capable of both wide angle and tele, on both FF and APS-C, 24-60 or 70mm is just about it for this kind of versatility in a fast lens. Other than those fast lenses, Pentax did make an FA 24-90mm f/3.5-4.5 AL IF that some thought highly of.
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Forum: Pentax DSLR Discussion
01-13-2019, 01:47 PM
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A FL of 24mm will provide wide angle on both FF and APS-C. There is the fast-aperture Sigma 24mm f/1.8 which I have, and find to be quite a good lens. It is a versatile FL when on either camera. Good with low light use. The DFA 24-70mm f/2.8 would be a very fine choice, and has weather sealing. Not of light weight or compact size, however. A perfect matchup with the DFA 70-200mm f/2.8 tele zoom.
The Sigma AF 24mm f/2.8 macro is no longer made, but is a very fine performer, and is very lightweight and compact. I am sure it can be found on the used market at a reasonable price.
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