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DLux-3 Silly mathematic question


ckthual

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Hi,

I've looked in the Manual, but didn't find my answer... my question :

If the DLux-3 makes, at wide angle zoom position, 28mm pictures in 16/9 (35mm equivalent), if I shoot in 3/2, what focal does it make (stil 335mm equi) ? about 35mm?

Thanks

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Cedric--

It figures out to about 31.6 mm equivalent on 35mm.

 

Not at all a silly question, particularly since it's hard to say that anything with a 16:9 aspect ratio has a "35mm equivalent." :)

 

By my calculations, assuming 6.3 mm focal length:

At 16:9, camera makes image of 67.7° horizontal f.o.v. and 75.3° diagonal.

At 3:2, camera makes image of 59.4° horizontal f.o.v. and 68.8° diagonal.

At 4:3, camera makes image of 53.8° horizontal f.o.v. and 64.8° diagonal.

 

In all cases, vertical field of view is 41.7°.

 

I hope that helps!

 

--HC

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Cedric--

It took me a long time to come up with numbers that made sense because I couldn't figure out whether when they said "28mm equivalent" they were measuring the long side or the diagonal. And then I realized I didn't remember the trigonometry correctly etc. I finally got help--guess where? On this forum!

 

I've got the D-Lux 2 and I love it. You may just find when you start shooting that the 16:9 format feels 'right' most of the time. Almost everyone I know who has used one of these has found that format very comfortable--see the review by Sean Reid, the comments by Michael Reichman etc.

 

I think you'll like it if you get it.!

 

--HC

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