this has made me cringe for a long time

11 months 3 weeks ago #704325 by darrenvox
back in 2010 i found my dads old SLR (Minolta xg-1)in the basement, i used the camera quite extensively around that time

and i remember using the lens he had with it, a telephoto 80-200mm lens...i took a bunch of photos with it until its timely demise (its still together, just its use has died)...and always noticed that when staring at the numbers on the lens (not while taking a shot), why one stop says "macro 1:6" when a telephoto lens is different than a macro lens...


does anyone know its true reason....other than that its a great lens...don't use the camera anymore ….(its hard to source film nowadays) and its easier to use digital for uploading and stuff...

thanks


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11 months 2 weeks ago #704349 by Ozzie_Traveller
G'day Darren

From memory from my film-camera days ..... when the lens was at max zoom -and- minimum focus distance, the image size was compared with life size - leading to the 1:6 numbers

Also back in "the old days" zooms were held to about 3-times zoom to keep focus steady. Once better autofocus systems came along, zooms increased in size, knowing that the AF would adjust for focus shift while zooming

Hope this helps
Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/


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11 months 2 weeks ago #704351 by db3348
Darren

Some telephoto and zoom lenses  are made (and some are not) to have an ability to do "macro" photography  as well as their normal telephoto and zoom capabilities .  Some companies  who made such lenses  were lazy in their description  and just misnamed their products as "macro"  even though the lens  was not a true macro lens .

Technically , ratio 1:6  does not constitute genuine macro range magnification (which if you didn't know  starts @ 1:1  and greater - 2:1, 3:1, 4:1 . . . etc )  but  1:6  is still significantly close-up enough  to get  a reasonably magnified image  of something .

db3348
https://www.flickr.com/photos/[email protected]/


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