DA lenses with K1
Regards, Philip
Regards, Philip
Hang on, I'll check!
Any difference is really marginal. Providing the main subject is in the APS-C frame, taking it full frame would give a margin for cropping variation if indeed the FF image might be wholly acceptable. It's amazing such a lens with a long zoom range and to all intense and purposes be practically FF compatible yet still be really light. OK, it's not the same as using the DA* 300mm and DA* 200mm but certainly more portable. Worth a few more comparison experiments (but in the daylight!)
John K
Prior to getting a K1 and 28-105 lens I thought that APSc lenses would not be of much use unless used in crop mode. I am now favourably surprised to discover that the DA 35 Ltd Macro works extremely well on full frame and only vignettes if you pull the hood out to its maximum extent. The DA 40 XS, and DA70 Ltds also work extremely well without vignetting. The plastic DA 50 1.8 is great and extremely sharp. As expected the DA16-85 is unusable in FF mode with a heavy vignette but the DA 55-300 only vignettes to a minor extent in FF mode and so is quite usable especially if you intend to crop the result. My Tamron sp 90mm is razor sharp but I find the focus tends to stutter a bit especially when approaching macro subjects, something it did not do on the K3.
By manual focus I mean switching the M/AF lever under the AF mode button to M. Often manual focus is the way to go with macro shots.
John K
Miles
The DA15 Ltd vignettes very strongly when used in FF mode. However if you crop out most of the vignetting and compare with the same scene taken in APSc mode, you still get a significantly larger and wider photo in FF mode than you do in APSc mode. I think this could be useful.
Yes, that's true. If need be the vignetting can be corrected to an extent in Photoshop or simiiar to provide a letterbox shot using most of the width (not full width however). The corners aren't there though to bring back!
John K
That's really odd because if the camera is set to manual focus the AF button shouldn't do anything.
By manual focus I mean switching the M/AF lever under the AF mode button to M. Often manual focus is the way to go with macro shots.
Have you tried setting the AF/M lever to M? As I said, the focus then cannot change as it's switched off completely. Also consider switching off autofocus linked to the shutter release button, then you can leave the AF/M lever on AF but it won't refocus the shot unless the AF button is pressed. Alternatively setup the AF button to not refocus while it's pressed. The way the K-5, K-3 and K-1 work are all much the same in that respect.
John K
At 10mm up to about 14mm it's useless though.
Best regards, John
miles500
Member
Surrey
Miles