02-26-2017, 08:59 AM
Hi Arthur...how are you doing?
First off here's a link to Tony Northrup's new video about focus breathing and his test with extension tubes in order to be able to test for FB on any lens.
https://www.youtube.com/watch?v=XP5-e4Q01Ac&t=3s
I don't do much portrait shooting, but have three lenses that I would like to check the effect with extension tubes, the Nikor AF85mm F1.8D and the Sigma 150 F2.8 macro (a lens I like a lot) and the Tamron 150-600mm G2, the latter just as an experiment.
So far I haven't been that tempted to with the 70-200mm focal length on FF, I had 50-150mm on APSc (my last remaining unsold PK mount lens) and didn't really use it often, too short for nature work and I don't shoot sports much.
Anyway nice to see that the info is now out there as this subject has become talk of the photographers town!
First off here's a link to Tony Northrup's new video about focus breathing and his test with extension tubes in order to be able to test for FB on any lens.
https://www.youtube.com/watch?v=XP5-e4Q01Ac&t=3s
I don't do much portrait shooting, but have three lenses that I would like to check the effect with extension tubes, the Nikor AF85mm F1.8D and the Sigma 150 F2.8 macro (a lens I like a lot) and the Tamron 150-600mm G2, the latter just as an experiment.
So far I haven't been that tempted to with the 70-200mm focal length on FF, I had 50-150mm on APSc (my last remaining unsold PK mount lens) and didn't really use it often, too short for nature work and I don't shoot sports much.
Anyway nice to see that the info is now out there as this subject has become talk of the photographers town!