On July 25, 2006 I sent the following message to a photo pro:
>
> I want to buy a "normal" lens for my Canon 30d and
> read your article with great interest, but must add that I am now thgroughly
> confused.
>
> I thought that those who said a 300mm lens on a
> digital camera actually performed like a longer lens,
> say 450mm were wrong. That the truth was the 300mm
> lens on DSLR provided the narrower field of view of
> the longer lens, because the sensor on the DSLR was
> smaller than 35mm format, but did not actually equate to a 450mm lens.
>
> Then I read where you said that a 30mm lens on a DSLR
> equaled a normal 50mm lens on a 35mm
> camera.
>
> I know that you know what you are talking about and
> will be able to clear up my confusion.
>
I received the following reply and being very dense I am now more confused then ever:
cheap digital SLR -> film
30 -> 50
300 -> 450 or so
How can a 30mm lens act like 50mm lens on a DSLR camera?
SRW