Differences between film and dslr lens specs
Jan 30, 2017 21:11:52 #
ORpilot wrote:
... The better lenses by Zeiss and Leitz as well as a few of the Canon and Nikon, were designed to focus the correct colors of light to it's 3 corresponding layers of emulsion on the color film. .... Early lenses depended on an external color filter yellow, red green etc to only focus one color on the single layer of B&W emulsion. They did not do well with color films. ....
Pretty strong statements, got any sources for that information?
Jan 31, 2017 00:05:03 #
Although film is nearly forgotten, knowing photography history adds knowledge. Too many newcomers have no clue about photography. Too often, its push the shutter a zillion times and pray the PhotoShop gods will make you look like a photographer. I have photography students who have no idea what depth of field means, no idea about exposure, composition and the myriad other basic photography aspects. Like it or not, we owe this to the digital revolution.
Jan 31, 2017 02:44:20 #
Leitz
Loc: Solms
2nefoto wrote:
I have photography students who have no idea what depth of field means, no idea about exposure, composition and the myriad other basic photography aspects. Like it or not, we owe this to the digital revolution.
No one knows anything about photography until they learn it, no matter the medium!Jan 31, 2017 02:53:18 #
bobsmith wrote:
I read somewhere that a 50mm dslr lens is closer to an 80mm film lens than a 50mm. Can someone explain the reason and the relationship? Thanks!
50mm is 50mm no matter what camera it is on. A smaller sensor will only use a smaller portion of the image. Somehow between marketing people, people who think of 35mm film size as their reference and some fuzzy thinking, people have gotten confused. 50mm is a hair under 2 inches. It does not stretch when you change cameras.
Feb 1, 2017 10:46:04 #
Feb 1, 2017 15:01:44 #
Mar 12, 2017 07:25:50 #
DSLR Camera sensors were designed based on the 35mm film SLR cameras. The film negatives has a framed area that's 24mm x 36mm where the image is burned onto the film base. The "full framed" digital camera imagery is the same size and 35mm lenses are designed to work on both cameras The designated focal lengths of the lens
are based on the 35mm film and full frame digital cameras. The smaller digital sensors, Canon and Nikon APS-C are x1.6 and x1.5 times larger because the cameras sensors are smaller. This is why a 50mm lens on a x1.5 sensor will be actually a 75mm focal point lens. The APS-C cameras were designed primarily for amateur and semi-professional photographers to save on cost and not requiring the quality and durability needed by professional photographers.
are based on the 35mm film and full frame digital cameras. The smaller digital sensors, Canon and Nikon APS-C are x1.6 and x1.5 times larger because the cameras sensors are smaller. This is why a 50mm lens on a x1.5 sensor will be actually a 75mm focal point lens. The APS-C cameras were designed primarily for amateur and semi-professional photographers to save on cost and not requiring the quality and durability needed by professional photographers.
Mar 12, 2017 07:46:42 #
Also, there are basically two types of 35mm lens, "full-frame" (professional) and "APS-C" (semi-pro) lens. The differences between the types of lens varies in price, quality, built, durability, sharpness and design. APS-C DSLR cameras usually include kit lens and are considered as 'starter' photography gear that is affordable.
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