Bought a Nikon.
Well, an "old" Nikon! But its a NIKON! Model is AF N600?! Bought it for the lens which is a Nikon AF Nikon 35 - 70 f/3.3 - f/4.5.
Will reverse it on an Olympus E-620. Lens is in good shape, no dings, scratches. Zoom, f-stops and focus works fine.
Question, when attached to the E-620 for macro work, how do I figure magnification factor at various zooms?
(Hope I have not violated any rules, laws by attaching a Nikon lens to an Olympus! :)
GrayPlayer wrote:
Question, when attached to the E-620 for macro work, how do I figure magnification factor at various zooms?
First - do not expect good results when you reverse-mount a zoom lens onto another zoom lens.
Second - the best way to know your magnification is to photograph a metric ruler, and compare capture to measured size of camera sensor.
FAQ: How to Document Field-of-View (Magnification) of a Macro Lenshttp://www.uglyhedgehog.com/t-36370-1.html
Nikonian72 wrote:
First - do not expect good results when you reverse-mount a zoom lens onto another zoom lens.
Second - the best way to know your magnification is to photograph a metric ruler, and compare capture to measured size of camera sensor.
FAQ: How to Document Field-of-View (Magnification) of a Macro Lenshttp://www.uglyhedgehog.com/t-36370-1.htmlSo are there any combinations of reversing two lenses that do work? Two primes? A prime and a zoom? Half a zoom, two thirds prime and a 1.4 TC?!? :shock:
I've seen guys do it but my efforts have failed...
Not mounting to a zoom, directly to camera. Thanks for suggestions on using a ruler.
Captured some quick shots and look good so far. Will try more tomorrow.
GrayPlayer wrote:
Not mounting to a zoom, directly to camera.
My error. Straight reverse is easier, still requiring a special camera mount-to-male-thread, to be able to attach a lens using the female filter threads.
Again, do not expect decent results, as all zoom lenses, and all standard prime lenses, have a curved arc (field) of focus for normal use, and reversing causes the lens to
project a curved field to the sensor. Large apertures can cause corners to be OoF.
mechengvic wrote:
So are there any combinations of reversing two lenses that do work?
Two primes are the preferred combination for stacking lenses.
For both scenarios, read more here:
FAQ: Differences between Reverse-Mounted and Stacked-Lenses for Macro-Photography?http://www.uglyhedgehog.com/t-90623-1.html
GrayPlayer wrote:
(Bought a Nikon) Well, an "old" Nikon! But its a NIKON! Model is AF N600?!
You have my deepest sympathy.... ;-)
Nikonian72 wrote:
Again, do not expect decent results, as all zoom lenses, and all standard prime lenses, have a curved arc (field) of focus for normal use, and reversing causes the lens to project a curved field to the sensor. Large apertures can cause corners to be OoF.
So not worth the effort in your opinion?
A-PeeR wrote:
You have my deepest sympathy.... ;-)
Well, for ten bucks, seems worth while. Better than a sharp stick in the eye!
GrayPlayer wrote:
Well, for ten bucks, seems worth while. Better than a sharp stick in the eye!
Indeed it does. I was just razzing you over the camera system (Nikon). I love picking up old glass, some real value if one doesn't mind manual focus and aperture.
Ok, I get it. Now I see the light! Pick on the old "guy" day! Wait until I show the "stunning" images!
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