hello,
here is a sort of review I made 2-3 month ago while I was beginning with my F30. I think it should be still helpfull altough I dont know how works the f31. These details apply for the f30
So the interesting thing for me is it's Auto/manual mode which is very usable.
With the flash set to forced mode and ISO set to 400, the speed and aperture values are these:
Auto/manual mode
| macro mode:
| WA: 1/60s - F8 (1/60s - F5.6 at 100ISO)
| Full zoom: 1/100s - F5 (idem at 100ISO, 1/100s - F8 at 800ISO)
| normal mode:
| WA: 1/60s - F2.8 (idem at 100ISO)
| Full zoom: 1/100s - F5 (idem at 100ISO)
I think these are preety allrounding values, aren't they? Maybe a little too slow in WA macro mode.
I choosed 400ISO because the F30 produce almost no noise at this setting, but 100ISO measurements were done too.
Then I tried speed priority at 400ISO and took 1/200s as a default setting. 1/200s being enough IMO to get a nice photo from a fish moving quite quickly.
Speed priority
| macro mode:
| WA: 1/200s = F2.8 (idem at 100ISO)
| Full zoom: 1/200s = F5 (idem at 100ISO)
| normal mode:
| WA: 1/200s = F2.8 (idem at 100ISO)
| Full zoom: 1/200s = F5 (idem at 100ISO)
Then aperture priority at 400ISO. The idea being to get the max F stops for the biggest depth of field in macro photo. Minimum values also available
Aperture Priority
| macro mode:
| WA:
| maxi F8 = 1/60s (F5.6 = 1/60s at 100 ISO)
| mini F2.8 = 1/60s
|
| Full zoom:
| maxi F8 = 1/100s (F8 = 1/100s at 100ISO)
| mini F5 = 1/100s
| normal mode:
| WA:
| maxi F8 = 1/60s (F8 = 1/60s at 100ISO)
| mini F2.8 = 1/60s
|
| Full zoom:
| maxi F8 = 1/100s (F8 = 1/100s at 100ISO)
| mini F5 = 1/100s
From all this I can say that this camera has one setting available for every situation underwater.
Except maybe a fast macro mode in WA like 1/200s at F8, 1/60s at F8 being the best setting in this case.
What I am going to do is to use the F30 in Auto/manual mode all the time except for two situations:
1- shooting a fish moving quite quickly, then use speed priotity set to 1/200s (1/200s at F2.8 in place of 1/60s at F2.8).
2- shooting in macro at full zoom, then use aperture priority set to F8 (F8 at 1/100s in place of F5 at 1/100s).
Bye.