F8.0 in C5050 to the limit?

[Diver ABC]

Hi,

I read some UW photography books, in which some of the pics were exposed at F11 to F22. Do you have any limitation in exposure when using C5050 which only allows at most F8.0? Thanks.

 

[Bacchus]

I shoot anywhere from 1.8-5.6 + I've never shot as high as F8 but I'm sure there may be cases when there is enough light to warrant it. Average has always been around F5.6.

F11-F22 :wacko: IMHO There's simply just not that much light to shoot with the apeture that wide open.

 

[PEIDiver]

I seem to remember reading on photo.net that digicams have a greater depth of field for a given apature than a 35mm film cam due to the small size of the ccd's. Anybody with a good understanding of optics able to verify this?

Another thing to remember is that you will have a greater depth of field at the wide angle range of your zoom than at the long range for any given f stop.

Steve.

 

[Scubatooth]

Bacchus once bubbled...
I shoot anywhere from 1.8-5.6 + I've never shot as high as F8 but I'm sure there may be cases when there is enough light to warrant it. Average has always been around F5.6.

F11-F22 :wacko: IMHO There's simply just not that much light to shoot with the apeture that wide open.

you have it wrong its the other way around a lens with a f2 is a very fast lens because the apetures is wide open a f22 is almost a pin hole in some cases just depends on the lense

 

[Bacchus]

Scubatooth once bubbled...


you have it wrong its the other way around a lens with a f2 is a very fast lens because the apetures is wide open a f22 is almost a pin hole in some cases just depends on the lense

OOps, what I should have said (and actually meant to say) was that there isn't enough light to shoot with the apeture that closed down (larger F stop).

Anyway, the point is, I haven't seen any limitation with the 5050 from an apeture standpoint. I guess I haven't found a situation u/w that requires a F stop larger than 8? You can always speed up your shutter. (I guess that opens up the depth of field debate) :wacko:

Steve

 

[Dee]

When I used the old MMIIex, I frequently used f/11 and f/22 for macro shots. But since going digital I don't think I've been beyond f8.

I'll leave the explaination of why to others who can explain things better than I can. Reyer or Scorpiofish...you giys wanna take a stab at this?

 

[Diver ABC]

Thanks all your input. Let's put it simple.

Can C5050 generate that same type of pic, ie sharp, bright macro with dark backgroud at limited choice of f-stop? If it can, my question may not be meaningful.

Of course, beside the outcome, it is also interesting in discussing a bit in photo techniques

 

[Dee]

Simple ~~ Yes!

 

[ReyeR]

Depth of field is affected by the aperture, subject distance (closer subjects produce a shallower depth of field) and focal length. The last reason is what affects the aperture values for digital cameras.

The reason for this is that the imaging chips (CCDs) on most consumer digitals are very small (small fingernail). This means that the focal length of a 'normal' lens for a format that small is as short as 15mm (compared to 50mm for a 35mm format). A 15mm lens at F5.6 has DOF from about 76cm (2.5') to infinity!

 

[luv2scuba]

Following is a link to tables showing the depth of field for the Olympus 3040, 4040, and 5050 cameras compared to 35mm.

http://www.wrotniak.net/photo/dof/c5050.html