sally_tomato wrote in post #13933179
^^wow
please forgive me: what does "Preset" mean, in your OP?
They are (usually) old lenses that have two aperture rings, usually at the front of the lens. The first ring you set the aperture you want, and the second ring opens the aperture fully or stops it down to the setting of the first aperture, to make it easier to manually focus.
Here is an example of 3 of my preset lenses. From left to right, Tele Takumar 200mm F5.6 Preset, Takumar 200mm F3.5 Preset and Tele-Takumar 300mm f6.3 Preset
IMAGE LINK: http://www.flickr.com …/55229792@N03/6729118167/
Takumar Telephotos
by
Colorado CJ
, on Flickr
Preset lenses have a special way they render images. They usually have a large number of blades (some as high as 20 blades) and the aperture is usually at the front of the lens instead of the back like most lenses. These two design features make preset lenses render very 3D images and give a subject separation that is hard to find on modern day lenses.
You don't see this (too much) at high f-stops, but at lower f-stops you can really get very high separation. For example, here is an image taken Saturday with a Tair 3 300mm Preset lens set to F5.6. Notice how the tree and deer are almost 3D looking. This lens has 16 aperture blades making a perfectly circular aperture at all F-stops.
IMAGE LINK: http://www.flickr.com …/55229792@N03/6904571301/
Mule-Deer-18-Feb-2012-1
by
Colorado CJ
, on Flickr
I've been shooting with Presets exclusively for 4 months because of the way they render. They are fully manual, but you soon get used to that. I am actually selling off my last auto focus lens right now.... and buying more presets.
