Holger wrote: nehemiahphoto wrote:
Some testing notes:
Shot on tripod, IBIS off, manual focus, 5 second delay, A7rII, RAW, same exposure, all lens' corrections turned off, no editing except balance of WB.
1) Infinte crops: Tamron @ 20 vs. G 20
Finding:
The G 20 is better at each comparable aperture across the entire frame. I like the G 20 1.8 to the Tamron's f8, all over the frame. This is impressive.
Finding:
GM 24 blows the others away wide open. At comparable apertures, I prefer the GM 24 > G 21 > G 20 > Tamron
3) Color and Fine Texture:
Contax G 21
Tamron @ 20
GM 24 @ 1.4
G20 @ 1.8
Finding:
The texture and color the GM 24 is easily differentiated from the G 20--look at the aliasing on the G20 and crispness. The closest to the GM 24 is the Contax G 21 with similar saturation and textural quality. Note the paper texture more on the Tamron and G 20 (sharp, no SA!)
4) Framing
G 20
Tamron 17-28 @ 20
Finding:
G 20 is wider, seems more like a 19mm. Any one else test this against a different zoom?
I find the bokeh comparison a bit misleading, as you are probably at the same distance but don't have the same magnification and different FOVs, affecting the bokeh greatly. I prefer trying to have the same magnification requiring to get closer with the 20G. The 24GM will still have the edge at f1.4, but at f1.8 both are close (I have both and tried that).
I did leave the tripod set for my tests. Wasn’t intending to mislead. It’s not so close IMO even if you bump the GM closer. The GM has smoother transitions and more CA which helps.
Can I see your crops?
Mar 11, 2020 at 02:36 AM
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