FILM LENS FOCAL LENGTH VS DIGITAL LENS FOCAL LENGTH?
Question by Vince M: Film lens focal length vs digital lens focal length?
I have eventually done a thrust to a digital SLR. I’ve systematic my Cannon Rebel XSI with an eighteen to 55 mm wizz lens. In my very aged past, when we shot film, we had a great preference of lenses. And we had a flattering great thought of a grade of magnification for a operation of focal lengths. For example, we knew what my 100 to 200 mm wizz lens was able of. But now, as we researched a specs upon digital cameras, a total brand new set of parameters had to be learned. On my indicate as well as fire digital, we accepted which 3X, 5X, 10X visual wizz could be flattering incomprehensible as what was 5X to a single manufacturer was something else to another. But, when it comes to DSLRs, a standards appear to request opposite a board, though which doesn’t assistance me assimilate what to essentially design in performance.
My subject is: Can someone duplicate a table, or greatfully yield a couple to one, display a more aged of movie camera lens focal lengths to those of digital camera lenses? Even if not a finish table, a single which competence uncover me what today’s equivilant is to a aged 50 mm 100 mm, 200 mm, 500 mm lenses would be helpful.
Thanks.
Thanks, “proshooter,” for your discerning answer.
So, if we got this right, if we longed for to find a digtal lens equivilant to an aged 500 mm, we widely separated 500 by 1.6 as well as got 312.5. So, I’d be seeking for something about 300 to 325 mm in a digital formats? Is which right?
Best answer:
Answer by proshooter
the XSi has a stand cause of 1.6 so your 18-55 lens has a perspective of a
a 28-88 mm lens upon a movie SLR, or a DSLR with a full support sensor.
Just greaten a focal length by a stand cause to a in effect focal length for your camera , for each lens as well as focal length.
http://photography.suite101.com/article.cfm/digital_camera_lens_crop_factor
Add your own answer in a comments!
To answer your additional question.
Yes, you have that right, at least mostly.
You can’t generalize “in the digital formats” because they are not all the same. YOUR camera (and many others, too) has a 1.6 crop factor.
But there are other digital cameras with different crop factors (e.g.1.3) as well as digital full frame cameras that “act” like film cameras as far as the lenses are concerned.
From your ancient past, do you remember anything called APS sized film? You know, the smallest widely available film type. Well, that’s pretty much what your “modern” camera is. Just multiply whatever lens you currently have by 1.6 and this will be the new focal length.