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What is flash??
I've been comparing many point & shoots lately and wonder if flash cancels out the bad effects of noise to a large degree at many iso levels? Is it recommended to use flash in any situation possible? Are the pictures compared on dpreview taken with or without flash and do most professionals, whether it be dslr or point&shoots, always try to use flash whenever possible? Your thoughts would be much appreciated...

Comments (6)

Pauw wrote:.

I've been comparing many point & shoots lately and wonder if flashcancels out the bad effects of noise to a large degree at many isolevels?.

Flash provides light to the subject, allowing the camera to use a lower ISO, and hence a less noisy image. It can also be used as fill flash. If the image is correctly exposed at ISO 100, adding flash isn't going to help unless you need higher shutter speeds..

Flash on a P&S camera is severely underpowered (low ISO guide number), and mis-used looks horrible. A professional off-camera flash can be made to look fantastic in indoor settings..

Flash outdoors can never really be used as a primary lighting source for any significant area..

Is it recommended to use flash in any situation possible?.

No, only when it's appropriate (fill flash, etc)..

Arethe pictures compared on dpreview taken with or without flash.

The static scenes are shot with a full studio hot-light setup..

And domost professionals, whether it be dslr or point&shoots, always try touse flash whenever possible? Your thoughts would be much appreciated..

Whenever possible = whenever appropriate, yes..

In other words, flash != win...

Comment #1

I see, thank you, what do you need a hot shoe external flash for?..

Comment #2

An external hotshoe flash is more powerful, computer controled for power, aimable, and on some cameras can be used for focus assist..

Pauw wrote:.

I see, thank you, what do you need a hot shoe external flash for?.

If you think that makes sense, then you must have read someone else's post!..

Comment #3

Some advantages of external flash (hot-shoe flash):- it uses it's own batteries, not the camera's.

- usually it can be tilted (& rotated), so it can provide bounced light (eg. you can flash on the ceiling instead of directly at your subject).

- it is further from the optical axis, which means less probability for the 'red-eye'- it is stronger than the built-in flashes- it recycles much faster than the built-in flashes.

Kris..

Comment #4

Pauw wrote:.

I've been comparing many point & shoots lately and wonder if flashcancels out the bad effects of noise to a large degree at many isolevels?.

Not so much cancels out as it allows you to shoot at lower ISO's. (IF your subject is within your flash range.).

Is it recommended to use flash in any situation possible?.

No. Only those where it is appropriate. Dark situations for sure, but possibly in broad daylight to provide fill..

Arethe pictures compared on dpreview taken with or without flash.

Look for a browser plugin called IExif by Opanda. That will allow you to right click on an image and read any exif information included. Without knowing which pictures you are asking about I can't say one way or the other..

And domost professionals, whether it be dslr or point&shoots, always try touse flash whenever possible? Your thoughts would be much appreciated..

Professionals use light. Notice I didn't say what kind of light. That's because it doesn't matter once you understand light and the basics of making a photograph. You'll use or create whatever is available/needed..

Now, since you are referring to P&S cameras, your flash options are pretty limited without adding optical triggers and external flashes. (Which although cumbersome and inconducive to mobility, would actually provide better lighting.) So on the go shooting will usually be done with the on-board flash. Unfortunately such flashes are typically pretty weak and the flash is so close to the lens axis that harsh shadows are cast everywhere behind your subjects and red-eye is just a fact of life. Also, I'm not sure what P&S cameras offer in the way of fill-flash capabilities or what if any manual controls..

All in all, I'd say with a P&S strive to shoot without the flash as much as possible, but do learn how the flash can be used judiciously for best effect. Read up on lighting over at the Strobbist blog. (http://www.strobist.blogspot.com/)Chefziggyhttp://www.pbase.com/chefziggy/lecream..

Comment #5

Pauw wrote:.

I see, thank you, what do you need a hot shoe external flash for?.

A hot shoe on the camera - not many P&S cameras have one. You can see a hot shoe on the Canon G9 here:http://www.dpreview.com/reviews/canong9/.

It is the fitting on top of the camera above the lens between the two control dials.Chris R..

Comment #6

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