Re: Macro

[P3D Ronald J Beck <rbeck@xxxxxxxxxxxxxxxxxx>]

I believe what you are looking for is the "reading glasses in front of the 
lenses" technique.  I seem to recall (and those who've done this please 
comment too) that reading glass lenses can be used to perform Macro 
Realist.  In fact, there's been (again if I recall correctly) several 
tables published in previous digests telling how to determine the focal 
length using reading glasses as close-up lenses.

However, not having a Realist, I'll probably use my SLR w/ 28mm macro & a 
slide bar.  There's a lot of neat ice formations in our yard today.

Regards,
Ron


In photo-3D digest 1802, sandman said:
> Lets say I have Tazmanian Devil Figure that is 6" high (I don't, but 
> lets say I do).  This figure has some cool thing in his hand like a 
> Pool Cue.  I want This figure to dominate the frame of my 3D picture. 
>  Now to do so I figure it needs to be 2 feet away from the camera.  
> Problem,  The Realist can't focus that close.

> Ok, so it needs to be 4 feet away.  But now it is too small.  At 2 
> feet it was 14.2 degrees high now it's 7 degrees high.  I don't have 
> a cool _Honey, I Blue-Up The Kids_ Device to make Taz Twice as big.  
> What do I do?

> Do I need to use my SLR with a macro lens and a slide bar? Can I get 
> a device to make this easier?  Like something to attach to my tripod 
> that has a slide bar and a tripod attachment that does not 
> twist.......is it cheaper just to make my own?

> Sandman 



------------------------------