Reflex Lens
Aug 14, 2018 09:16:00 #
Aug 14, 2018 09:17:41 #
Aug 14, 2018 09:21:14 #
bamfordr
Loc: Campbell CA
Or, “A single-lens reflex camera (SLR) is a camera that typically uses a mirror and prism system (hence "reflex" from the mirror's reflection) that permits the photographer to view through the lens and see exactly what will be captured. ” (Wikipedia)
Aug 14, 2018 09:46:52 #
avemal wrote:
What is a REFLEX LENs
A mirror lens. Gets you a long fixed telephoto reach (commonly 500mm) in a short lens with lighter weight at a lower cost. Trade offs are a single f-stop (usually f/8 or f/6.3), softer focus, and weird donut-like out of focus highlights.
Aug 14, 2018 09:47:08 #
avemal wrote:
What is a REFLEX LEN ? ( btw, It’s lens, never len.)
Nikon calls thier mirror lenses “Reflex” Nikkor.
https://www.bhphotovideo.com/c/used/36975/?c3api=1876%2C72118895162%2C&gclid=EAIaIQobChMIpIir9Nbs3AIV0bfACh33ngtGEAQYAyABEgK0tvD_BwE
I used to have one of the older models of this lens. Light weight for the focal length, but not the sharpest arrow in the quiver.
Didn’t matter that much, I used it for the newspaper and after they got done with printing it, no one would notice.
Aug 14, 2018 09:54:59 #
Acufine3200
Loc: Texarkana USA
GoofyNewfie wrote:
Nikon calls thier mirror lenses “Reflex”
https://www.bhphotovideo.com/c/used/36975/?c3api=1876%2C72118895162%2C&gclid=EAIaIQobChMIpIir9Nbs3AIV0bfACh33ngtGEAQYAyABEgK0tvD_BwE
I used to have one of the older models of this lens. Light weight for the focal length, but not the sharpest arrow in the quiver.
Didn’t matter that much, I used it for the newspaper and after they got done with printing it, no one would notice.
https://www.bhphotovideo.com/c/used/36975/?c3api=1876%2C72118895162%2C&gclid=EAIaIQobChMIpIir9Nbs3AIV0bfACh33ngtGEAQYAyABEgK0tvD_BwE
I used to have one of the older models of this lens. Light weight for the focal length, but not the sharpest arrow in the quiver.
Didn’t matter that much, I used it for the newspaper and after they got done with printing it, no one would notice.
Aug 14, 2018 10:02:18 #
avemal wrote:
What is a REFLEX LEN ?
Most likely a mirror lens, like a telescope. But as pointed out the term "reflex" can refer to a camera with a mirror with one or two lenses; TLR, SLR. Where did you see it? With unknown words the context is often the key.
Aug 14, 2018 10:57:14 #
Leitz
Loc: Solms
lamiaceae wrote:
Most likely a mirror lens, like a telescope. But as pointed out the term "reflex" can refer to a camera with a mirror with one or two lenses; TLR, SLR. Where did you see it? With unknown words the context is often the key.
There's a pretty good key word in the title.
Aug 14, 2018 12:18:26 #
bamfordr wrote:
Or, “A single-lens reflex camera (SLR) is a camera that typically uses a mirror and prism system (hence "reflex" from the mirror's reflection) that permits the photographer to view through the lens and see exactly what will be captured. ” (Wikipedia)
That is not what a "reflex lens" is... but it's a great description for a single lens reflex CAMERA.
Aug 14, 2018 14:33:56 #
amfoto1
Loc: San Jose, Calif. USA
Yes, "reflex" means "mirror" (whether camera or lens... or a telescope, for that matter).
In a lens the mirror "reflects" the image to "fold" the light path, allowing the lens to be much smaller and lighter than a non-reflex lens of the same focal length. (In a camera, a mirror "reflects" the image to redirect it up into a pentaprism and then another mirror redirects it toward the eyeport of the viewfinder.)
Also known as "catadioptric" lenses... but "reflex" or "mirror" is a lot easier to say, remember and type (and spell... I had to correct my own misspelling of it!)
https://en.wikipedia.org/wiki/Catadioptric_system
In a lens the mirror "reflects" the image to "fold" the light path, allowing the lens to be much smaller and lighter than a non-reflex lens of the same focal length. (In a camera, a mirror "reflects" the image to redirect it up into a pentaprism and then another mirror redirects it toward the eyeport of the viewfinder.)
Also known as "catadioptric" lenses... but "reflex" or "mirror" is a lot easier to say, remember and type (and spell... I had to correct my own misspelling of it!)
https://en.wikipedia.org/wiki/Catadioptric_system
Aug 15, 2018 07:35:39 #
avemal wrote:
What is a REFLEX LEN ?
It's the camera that's reflex, as others have explained. It's all done with mirrors. : )
Aug 15, 2018 08:16:43 #
billnikon
Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
avemal wrote:
What is a REFLEX LEN ?
A lens designed to work on a reflex body.
Aug 15, 2018 14:38:31 #
avemal wrote:
What is a REFLEX LEN ?
Mirror lens, a takeoff on astronomical telescopes. Nikon made three focal length mirror lenses, 500, 1000 and 2000mm.
They were tricky and hard to use. I had the chance to borrow/use all three when I worked for the old Helix Rental in Chicago during the 1980s
Aug 15, 2018 15:10:58 #
I have tried mirror lenses and decided they are not for me inspite of the savings in cash and weight. My goal is great IQ and a mirror never satisfied.
Aug 15, 2018 15:37:45 #
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