Assuming we are talking about K bayonet cameras and lenses, and looking for lenses that will work with modern DSLRs, then you need A series manual focus lenses and any AF lenses.

Where there is an aperture ring on a lens, set it to "A" and all will be well. If there is an aperture ring but no "A" setting the lens can still be used using the stop down metering technique. The technique is described in this review: https://www.ephotozine.com/article/vivitar-auto-macro-55mm-f-2-8-vintage-lens-re...

I use Pentax cameras and lenses for my own photography. I also review lenses of all makes for ePHOTOzine and all makes of camera are provided for that purpose. The new Tamron has been awarded Editor's Choice, and indeed if it becomes available in a Pentax version I will buy it. Users of Canon and Nikon can buy it now if they wish to.

I went for the new 28-105mm lens and that's been great.

It will be interesting anyway, and there's a lot to be said for restricting the maximum aperture and having a more compact lens.

The thought did occur to me that if the new Pentax lens performs as well as the Tamron sample that would be brilliant. I'd buy one without any doubt.

I've been using the SMC Pentax-F 17-28mm fisheye zoom for a while now, and it's absolutely razor sharp on the K-1. Might have a more technical look at it in due course.


I notice there is a fisheye zoom on the lens roadmap, but I'm glad that I managed to find one of the F series ones, at £199 probably a lot less than a new one will cost, whenever it arrives. In terms of design it looks a little more like an FA zoom, so it must have been released at the end of the run of F series zooms.

All that is true, but I think it's fair to say that the Ricoh film SLR has absolutely nothing to do with Pentax, whereas the K-3 has rather a lot to do with Pentax, as a division of Ricoh now perhaps, but nonetheless of distinct Pentax pedigree.

It's ironic that the brand owner is now a company that was not particularly significant in the days of film.

It all shows just how complicated things that are very simple can get. Pentax User is just that and its purpose and brief are hopefully fairly straightforward!

All Pentax cameras are indeed eligible, as are the various Samsung clones, which were the real reason for mentioning anything other than Pentax. However, there are a number of Ricoh compacts and indeed some of them were once labelled Pentax, such as the WG series.

So I don't think we can exclude the Ricoh compacts, but it isn't really the main drive of the forum. There might even be a Ricoh User forum somewhere, in which case should we expect them to accept the Pentax cameras? I probably wouldn't post Pentax pictures to such a forum, and I probably wouldn't post Ricoh ones here, but I wouldn't be dogmatic about it either. The newer Samsung cameras that have nothing to do with Pentax would definitely be out.

Hope that helps!

They really do have character. Current cars tend to end up the same shape, no doubt because they are designed in wind tunnels.