HKBWS BBS 香港觀鳥會新聞組


    
      
        HKBWS BBS 香 港 觀 鳥 會 新 聞 組
        (http://www.hkbws.org.hk/cgi-bin/YaBB.pl)
      

        Special Topics 特別主題 >> Tern Conservation 燕鷗保育 >>  Black-naped Tern 黑枕燕鷗 
        
(Message started by: Daniel CK Chan on Aug 14^th, 2003, 10:58pm)

Title: Black-naped Tern 黑枕燕鷗
Post by Daniel CK Chan on Aug 14^th, 2003, 10:58pm

184 Black-naped Tern 黑枕燕鷗
Mirs Bay 塔門
31/7/2003
Taken on the boat
EOS-10D, EF500/4, Av Evaluative Mode, -2/3, ISO 200, 80% Full Frame
http://www.danielckchan.com/b20030275.jpg
http://www.hkbws.org.hk/fileServer/PhotoG/daniel_chan01/danielchanbntern02.jpg

KK,
I am quite angry with my 10D's exposure on this shot >:( The photo has almost been over-exposured with +1~1.5 on every white parts of the birds even though I have compensated with -2/3 using Av evaluative exposure. Would you share with me your view. Many thanks.
Regards
Daniel
P.S. I wanted to use manual exposure but you knew it was not easy on the boat with an EF500 on hand. :-/

Title: Re: Black-naped Terns 黑枕燕鷗
Post by 648 on Aug 15^th, 2003, 8:54am

Daniel,
美極了！ :o可惜右下方的鳥分散了不少注意！ ;D
飛

Title: Re: Black-naped Terns 黑枕燕鷗
Post by KK Hui on Aug 15^th, 2003, 8:58am

I agree that the exposure could have been better ... A nice shot nevertheless, Daniel! ;D

With digi cam like the 10D and for white bird, I'd compensate for -1 1/2 at least in this case; it's always better to under expose for retaining plumage details. Shooting with RAW and you have nothing to loose!

Shooting M mode with incident light meter you may be more in control over exposure especially when the BG is ever changing but still you need to compensate for anything white.

BTW, the image was a tad oversharpened noting the halo around the edges ...

Best
kk
--------------
www.geocities.com/kkhui_001

Title: Re: Black-naped Terns 黑枕燕鷗
Post by Daniel CK Chan on Aug 15^th, 2003, 10:42pm

on 08/15/03 at 08:58:34, KK Hui wrote:

KK,
Thanks for your advise. However, some of the other photos taken in same day are good in exposure (with -2/3 Av evaluative) such as the portrait of Roseate Tern 粉紅燕鷗. This one however is in backlight situation so the over-exposure should be so serious?! Anyway, the exposure of 10D made me frustrated! :(

Title: Re: Black-naped Terns 黑枕燕鷗
Post by KK Hui on Aug 16^th, 2003, 8:32am

on 08/15/03 at 22:42:58, Daniel CK Chan wrote:

... some of the other photos taken in same day are good in exposure (with -2/3 Av evaluative) such as the portrait of Roseate Tern 粉紅燕鷗. This one however is in backlight situation so the over-exposure should be so serious?! Anyway, the exposure of 10D made me frustrated! :(

Daniel,

It's the backlit intense reflection on the upper wings of the flying bird that was vastly over exposed. The two stationary birds on the lower left are reasonably well exposed however. This is what I'd come to expect as you only compensated for -2/3 in Evaluative metering. In all fairness, I'm not too surprised with the result and remember 10D digi cam makes it worst! :'(

Best
kk
-------------
www.geocities.com/kkhui_001