Anyone using DMC-FZ50?

Belly

Belly

Belly

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I wanted to upgrade my Canon A70 (digital) to an IS camera with a long focal length lens. I wanted one with RAW (to try my hand at HDR), a reasonably fast lens and low noise levels.

I had hoped that the replacement for the Canon G6, the G7 would have fitted the bill, unfortunately the focal length of the lens is less that I would have liked and it does NOT have RAW. The noise levels seem acceptable.

So, is anyone using the DMC? Are the noise issues as bad as the reviews would have us believe?

Could someone please advise me: In real terms what is the difference between a F2.8 and F2.0? If say (using an old hand held light meter), the ideal shot was FStop 2 at 1/125th of a second, if now the largest aperature is F2.8 what would the speed be? (using a calculator and percentages I make it (and I bet it's wrong) 1/110th of a second?

I've always had Canon Cameras (film/digital) and might consider waiting for G8
 
f2.0 to f2.8 is one "stop" of light. In order words, the 2.8 can let in only half as much light as the f2.0.

Therefore 1/125th at f2 will give the same exposure as 1/60 at f2.8.

Does that make sense to you? :)
 
Joe T said:
f2.0 to f2.8 is one "stop" of light. In order words, the 2.8 can let in only half as much light as the f2.0.

Therefore 1/125th at f2 will give the same exposure as 1/60 at f2.8.

Does that make sense to you? :)
Click to expand...

Thanx. :) In principle yes but looking at my film camera Canon AE1 the sequence of f stops run, 1.8, 2.8, 4, 5.6 etc, thereby suggesting to me that 1.8 is twice 2.8? I therefore thought that f2 would be somewhere in between, ie NOT a full stop? And if my thoughts were correct I would have liked to know if there is a simple formula?
 
Don't feel like you need RAW for HDR, either just +/- exposure in photoshop (a bit dodgy but you can get results) or use a tripod and take 3 pictures at different exposures.
 
Belly said:
Thanx. :) In principle yes but looking at my film camera Canon AE1 the sequence of f stops run, 1.8, 2.8, 4, 5.6 etc, thereby suggesting to me that 1.8 is twice 2.8? I therefore thought that f2 would be somewhere in between, ie NOT a full stop? And if my thoughts were correct I would have liked to know if there is a simple formula?
Click to expand...
The multiplication factor between stops (for aperture) is 1.4.

2 x 1.4 = 2.8

2.8 x 1.4 = 4

4 x 1.4 = 5.6

5.6 x 1.4 = 8

8 x 1.4 = 11

And so on....

1.8 is a commonly used f-number, but it is not a whole stop. It is 1.3rd of a stop faster than f2.
 
Thanx guys for the advise on HDR.

JoeT, thanx for the FStop information. I now understand better. I live and learn! :)
 
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