Hello all.
My next lens purchase for my K-3II will be a dedicated macro. So far I have been using manual macro tubes with my A 50mm f1.7 or my new-to-me Helios 44-2 58mm. I'm getting on OK, but there are a couple of major annoyances - auto aperture would be a big improvement, but much more so the freedom to compose and then focus, rather than needing to focus by composing (if that makes sense).
I don't actually do much in the way of bugs and bees, more inanimate objects so I'm not that bothered by auto-focus or not. I also have plenty of options for other subjects so non-macro performance is not too important, it will be used purely for macro. Thirdly, I would like to spend as little as possible. Absolute tack-sharp is not important at all, in fact I like a little character as you can see. I also will be doing a lot of PP, usually in B&W, so CA and colour rendering is not so important. But if there is good reason, I'm happy to spend what's necessary.
I am a little confused about focal length - obviously I'm using ~50mm's on tubes, so does this mean a ~50mm macro will give similar results? If so, do I really need look much further than a used A 50mm f2.8 Macro? Or is there a 3rd party hidden gem out there that will work? The Tamron 90mm is an obvious contender...
Any suggestions?
Example shot using Helios 44-2 on manual tubes, processed in Silver Efex