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pagan-live-style's avatar

CoC vs sharpness from TTArtisan 50mm F1,2 lens

CoC (Circle of Confusion) vs sharpness from the manual focus TTArtisan 50mm F1,2 lens at full lensopening.

This altered Sonnar design (6 + 1 = 7 lens elements), although from the same lens familie of double gauss designed lenses, delivers a less nervous bokeh (is more pleasing, less distracting in relation to the main subject) to my opinion, then the Biotar or Biometar lenses and their copy's.

This lens center sharpness is already good at full lens opening, very good at F1,4 and excellent from F2,0 upward.

When doing so the diameter of the CoC will get smaller, while gaining overall sharpness.

For the most pleasing effect use this lens between F1,2 and F2,0 to your likings, i prefer F1,2 and F1,4, from F2,0 upwards when outstanding sharpnessis requiredi i prefer the Leitz Summicron 50mm F2,0 lens.

But in relation to the price point of 98,- dollar, it gets  excellent status from me and also in the Jonas Rask and in the Sony Alpha Blog review. (see below).

A second hand Summicron 50mm F2 will cost 5 till 20 times more the the 50MM F1,2 TTArtisan, and with the 50MM F1,2 TTArtisan you will have the bonus that it can be used on F1,2 and F1,4 as well with excellent results.

TTArtisan 50mm F1,2 =…

Circle of Confusion =….

Greetz Len.

Image details
Image size
6000x4000px 2.71 MB
Shutter Speed
1/309 second
Focal Length
50 mm
ISO Speed
Date Taken
Jul 17, 2021, 1:54:35 AM
Sensor Size
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33M's avatar

wonderful portrait and lens

pagan-live-style's avatar
Tigles1Artistry's avatar

Beautiful portrait indeed my friend...:clap:

pagan-live-style's avatar

Thank you Teresa! the forest is our sole sanctuary if want to go out for a walk, hardly any people, here we can take our masks off.

By the way, Thursday the Netherlands will go from red too dark red according the ECDC, due to 7 days of 10.000 new corona patients a day, and a rise in hospitalization from 51 % over the last week.

We see lost of Dutch trying to go to other country's for vacation before the dark red code will become effective on coming wednesday 24.00.

We will stay in the forest, iff we are not at home. home/garden > car > forest and vice versa.

greetings Len.

Arte-de-Junqueiro's avatar

Nice portrait of Cara!!

Melusine8's avatar

Superbe portrait Len, regard lumineux, beau contraste entre les détails d'avant plan et le flou de l'arrière plan.

pagan-live-style's avatar
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