Hopefully this is an appropriate Group for this Question.
How is it Possible to get a magnification of about 10 or 15 times, but
with a focal distance of about one foot.
Ideally I would like to use fairly large lenses (2 to 4 inches in
diameter)
I do some fairly detailed electronics and although a Jewellers Loop
works, getting that close to the work is a problem. Besides, it would
be nice to see with both eyes.
Also any suggestions on where to get the lenses that I will need for
this.
I have looked at the Surgical Glasses that are used in Micro Surgery,
but at $2000.00 thats a bit too much.
Re: taking pictures in the operating room ... the magnification will be high. ... 60 micro it is one of the best Nikon lenses,...Non-Macro Lense Aperture Min focus Max Magnification ... You cannot blow up the images to be "arbitrarily large" without ... (rec.photo.digital)
Re: Canon 30D ...DOF is a function of magnification, at a given f-stop (and recording ... I would agree with 1.2 and 1.4 lenses in general, ... For DOF, again, magnification is a major issue, not f-stop alone. ... without the mirror being locked up is pretty intriguing to me too. ... (rec.photo.digital.slr-systems)
Re: D200 or D300{ Which better for ... The camera 'magnifies' not the lens, simply by cropping, assuming you print the same size, that looks like magnification.... Given that I never bought any DX lenses and all my lenses are from ... (rec.photo.digital.slr-systems)
Re: Simple Prescription Question ...focal distance and trigger changes in refractive power something along the ... not knowing enough about optics, nanotechnology, light ... have no idea whether their lenses would be suitable for me or not ... ... (sci.med.vision)
Re: Question: Macro filters - do they work? ... The screw on lenses you mention are known as Plus lenses and usually come ... Thus, if you take a simple example of my Canon 50mm f/1.4 lens, which has a closest focus distance of 0.45m and a maximum magnification of 0.15, placing a +1 close-up lens on it will make it approximately 47.6mm focal length and have a maximum magnification of about 0.21. ... Furthermore, these calculations will be completely different for a primary lens of different focal length, or even for one of the same focal length but a different close focus distance.... (rec.photo.digital)
