Convert focal length to 35 mm equivalent, how to

Mike said:

I know this is an old topic, but I cannot find my notes. I have to
ask again.

How to convert the focal length of 990 to a 35 mm camera
equivalent? The focal length for my picturse were 8.2 mm, what is
the 35 mm equivalent? My panaroma software needs this number, I
guessed a wrong one and got a fuzzy output. I think there is a
formula for this purpose, could you tell me? Thanks.

Mike

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Peter iNova said:

Mike said:

I know this is an old topic, but I cannot find my notes. I have to
ask again.

How to convert the focal length of 990 to a 35 mm camera
equivalent? The focal length for my picturse were 8.2 mm, what is
the 35 mm equivalent? My panaroma software needs this number, I
guessed a wrong one and got a fuzzy output. I think there is a
formula for this purpose, could you tell me? Thanks.

Mike

Click to expand...

The wide angle on a 990 or 995 is a real 8.2mm and is supposed to
equate to a 38mm lens on a 35mm camera. Meaning that the multiplier
is 4.634. But the lens is marked as an 8-32mm lens meaning the
marked multiplier would be 4.75.

Now does that 38mm lens refer to the width angle of the long
dimension? How about the diagonal view angle? It's kinda hard to
compare a 2:3 aspect image to a 3:4 aspect image, so maybe we
should think of the multiplier as 4.7 for rough purposes.

-iNova

Click to expand...