Bothered abouts lens etc
Posted 09/03/2009 - 11:22
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hefty1 wrote:
It will always be a 50mm lens regardless, all that changes is the size of the image area behind it.
The original Carl Zeiss "Olympic" Sonnar (180mm f/2.8 ) was sold throughout its life (around 60 years' production) with different mounts to enable it to be used on 35mm and Medium Format cameras - during all that time I doubt the question of "35mm equivalence" came up once...
Exactly!
bforbes wrote:
So if you do such a thing would there not be an equivelent focal length for the lens on the different formats? or is a 67-50mm still 50mm on a 645 etc.?
A 50mm lens on a 645 camera would be a wide angle, the same lens on a 67 camera (larger image area) would be an ultra-wide angle. On a 35mm camera it would be "normal" and on digital it's a short telephoto.So if you do such a thing would there not be an equivelent focal length for the lens on the different formats? or is a 67-50mm still 50mm on a 645 etc.?
It will always be a 50mm lens regardless, all that changes is the size of the image area behind it.
The original Carl Zeiss "Olympic" Sonnar (180mm f/2.8 ) was sold throughout its life (around 60 years' production) with different mounts to enable it to be used on 35mm and Medium Format cameras - during all that time I doubt the question of "35mm equivalence" came up once...
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
Posted 09/03/2009 - 21:26
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If you are using a view camera life gets even more interesting... Because you want an image circle larger than the film so that you can make the most of all those tilts and shifts and rises and falls, you not only take into account the focal length of the lens, but also the size of the image circle...
I am now going to hide
Cheers, Kris.
I am now going to hide
Cheers, Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
Posted 09/03/2009 - 22:29
Link
womble wrote:
If you are using a view camera life gets even more interesting... Because you want an image circle larger than the film so that you can make the most of all those tilts and shifts and rises and falls, you not only take into account the focal length of the lens, but also the size of the image circle...
I am now going to hide
Cheers, Kris.
When are we going to see some results from the Horseman? I'm sure that would be allowed on a Pentax forum - please dont tell me there is a Horeseman User Forum!
If you are using a view camera life gets even more interesting... Because you want an image circle larger than the film so that you can make the most of all those tilts and shifts and rises and falls, you not only take into account the focal length of the lens, but also the size of the image circle...
I am now going to hide
Cheers, Kris.
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
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4018 posts
19 years
Buckinghamshire,
UK
So if you do such a thing would there not be an equivelent focal length for the lens on the different formats? or is a 67-50mm still 50mm on a 645 etc.?
It will always be a 50mm lens regardless, all that changes is the size of the image area behind it.
The original Carl Zeiss "Olympic" Sonnar (180mm f/2.8 ) was sold throughout its life (around 60 years' production) with different mounts to enable it to be used on 35mm and Medium Format cameras - during all that time I doubt the question of "35mm equivalence" came up once...