Hey, guys and dolls, crop factor changes the relative focal length, relative aperture, and relative ISO. It's just plain physics.
jlrivera wrote:
Ups; some people say yes a some say no !!!!
:shock:
Check out Tony Northrup on you-tube. You shuold multiply aperture by crop factor to get you actual lens aperture for the photo you are taking!
IBIJC wrote:
I have this old Exacta film camera with Carl Zeiss 2/50
lens and a Schneider Kreuznach 3.5/ 90 lens. Also have two tiny flash cubes ( 2x2x1 inches). Does anyone know this camera with its many knobs and dials, film size, and its workings ?
Looks really old but in excellent condition. It would make a
conversation piece if nothing else. Any suggestions ?
Thanks.
IBIJC
I owned an Exacta VXIIb back in the 60s and 70s with some success. I had a 50mm lens and a 135mm lens. Don't remember the speed of either lens, but they went with me on a trip to Scandanavia. I thought it was a great camera. I think the 135 lens was f1/3.5.
DWU2 wrote:
No, crop factor has no comparable effect on aperture.
I think the answer is yes you do apply the crop factor to aperture. Check Tony Northrup photo sites.
Video Vinny wrote:
OK, we've responded. How about a 'count' so we all may know. Vinny
Check p.32 of the thread for the count.
just pictures wrote:
canon
That's a Canon in your avatar?
OK, are you ready? (Have been for more than a week, I know!)
Nikon - 206 users (or owners, NOT models)
Canon - 155
Sony - 66
Olympus - 44
Pentax - 39
Fuji - 38
Panasonic/Lumix - 33
Kodak - 24
Minolta - 16
Samsung - 13
Mamiya - 12
Apple (incl. iPad) - 9
Leica - 9
Yashica - 8
Rollei (cord & flex) - 7
Argus - 6
Graflex - 5
Bronica - 4
Hasselblad - 4
GoPro - 3
Ricoh - 3
Calumet - 2
Exacta/Exa - 2
Holga - 2
Linholf - 2
Polaroid - 2
Agfa, Contax, Contina, HTC, Konica, Lenovo, Lomo, Minox, Sigma, and Voigtlander 1 ea.
If I missed someone's favorite, please accept my most humble apologies--The oldgeezer! (Also a statistician, ret.)
Nikron_7 wrote:
It is a handsome engine. Your historical commentary was excellent. The photo is great. Nice job. I did notice a slight oops in the sky amid the wires and around the tree from PP.
Ron
There are some electric motive power units that use X the overhead wires as current source in the Museum. It's a great place to spend a day. In fact, us rainrail nuts go often!
gawler wrote:
I agree with George I love mine 2 and far less trouble lol
( don't show the wife lol )
But I bet she finds out! What then?
Great shots! All the better when I've seen the birds in the wild.
No, guys, that is tne Fuzzy-tailed nut stealer!
Very nice photo, indeed!
Lazy Old Coot wrote:
I think you missed the whole point I was trying to make. If you want to limit speeds to 30 MPH then put in 30 MPH speed bumps. It makes no sense to limit drivers to 15 MPH with a speed bump in a 30 MPH zone!! ...... Coot
I agree! However, the local government personnel are not noted for their intelectual accumen!
Are those bright eyes, yours, Jack?
I suspect that most of the people in the neighborhood ignore the 30 mph limit! We have speed bumps in our 25 mph residential area for that reason!