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jordi

Member Since 09 Aug 2004
Offline Last Active May 02 2016 11:59 PM
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Posts I've Made

In Topic: Canon 5dS and 5DR

09 January 2016 - 11:57 AM

This is my grain of salt:
www.uwaterphoto.com/?p=82

In Topic: Full Frame SLR wide angle corrector port tests

27 November 2015 - 12:43 PM

For those interested, I have posted different f/stops samples with and without filter in my website:

http://uwaterphoto.com/?p=839


In Topic: Full Frame SLR wide angle corrector port tests

25 November 2015 - 10:38 AM

Finally I had the opportunity to test the filter in a pool, in a more controlled situation. I also tried the Canon 16-35mm F4 IS, IMHO a better corner performer than the 17-40mm I was using in my previous tests. I have tried different combinations (230mm glass dome port and Sea&Sea Fisheye "acrylic" port) and I got slightly better results with the 230mm glass dome. 

The improvement is near the claimed 2 stops, which is very good news. At F8 the corners are very good and at F11 they are perfect. 


In Topic: Full Frame SLR wide angle corrector port tests

24 November 2015 - 12:38 AM

Hi Tom,

 

Which f/stop are you using?

Thanks

 

 

Jordi


In Topic: Full Frame SLR wide angle corrector port tests

22 November 2015 - 02:47 PM

Hi Adam,

 

Thanks for the info. 

I've been thinking that maybe my results are not so good because I am using the old 17-40mm.

Some months ago I tried the new 16-35mm f/4 IS with the EOS 5DsR (50Mp) and the corners where very good, much better that the 17-40mm. So, I guess that with the S&S lens attached to the 16-35mm the results will be better.

I'll try to borrow it again and try it!