SEL20TC simple test

[sixmb]

Indoor test

 

left 200 5.6

right 100 with 20TC 5.6

 

 

FE70200GM with 20TC vs2 by Owen Lu,   Flickr

 

left 200 5.6 

right 200 with 20TC 5.6 

 

FE70200GM with 20TC vs by Owen Lu,   Flickr

 

VS FE70300

left 200 with 20TC 5.6

right 730 300 5.6

 

FE70200GM with 20TC vs 70300 by Owen Lu,   Flickr 

 

AF speed is close to FE70300 or even a little bit faster. 

 

 

Outdoor test

left 198mm with 20TC F8  

right 198mm F4

 

FE70200GM with 20TC by Owen Lu,   Flickr

 

 

198mm F4 

FE70200GM with 20TC by Owen Lu,   Flickr

 

 

198mm with 20TC F8 

FE70200GM by Owen Lu,   Flickr

 

Conclusion:

20TC is optimizated for  300mm-400mm focal length.

In daytime, FE70200GM with 20TC focus quickly, IQ is better than my expected.

While in the dark, 20TC works just so so.

 

 

[Username]

No sooprizes there, but thanks for a 

useful visualization of the situation !