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Photo Forum / Digital Photography / DSLR Cameras / January 2005Make-shift Macro Lens
This morning, I took an old slide projector lens & held it to the front of my 200mm on a D70 for these almost 1:1 macros: <http://www.edgehill.net/1/?SC=go.php&DIR=California/Bay-Area/San-Francisco/our-g arden/more/2005-01-05-macro&PG=1&PIC=1> Maybe not the best quality but pretty cool for found junk from the basement at nearly 4,812 dpi! > This morning, I took an old slide projector lens & held it to the front > of my 200mm on a D70 for these almost 1:1 macros: > <http://www.edgehill.net/1/?SC=go.php&DIR=California/Bay-Area/San-Francisco/our-g arden/more/2005-01-05-macro&PG=1&PIC=1> > > Maybe not the best quality but pretty cool for found junk from the > basement at nearly 4,812 dpi! Hmm, actually it's 1:1.7 at 5,347 dpi. A 0.56 image on a 23.7mm (0.93 inch) sensor if I understand correctly. <http://www.edgehill.net/1/?SC=go.php&DIR=California/Bay-Area/San-Francisco/our-g arden/more/2005-01-05-macro&PG=2 > This morning, I took an old slide projector lens & held it to the front > of my 200mm on a D70 for these almost 1:1 macros: <http://www.edgehill.net/1/?SC=go.php&DIR=California/Bay-Area/San-Francisco/ our-garden/more/2005-01-05-macro&PG=1&PIC=1> > Maybe not the best quality but pretty cool for found junk from the > basement at nearly 4,812 dpi! That's pretty neat. I think you have good possibilities there. The quality is up to par with dioptors so you should be able to perfect this with a little rigging. Rita > This morning, I took an old slide projector lens & held it to the front > of my 200mm on a D70 for these almost 1:1 macros: Clever. >This morning, I took an old slide projector lens & held it to the front >of my 200mm on a D70 for these almost 1:1 macros: ><http://www.edgehill.net/1/?SC=go.php&DIR=California/Bay-Area/San-Francisco/our-g arden/more/2005-01-05-macro&PG=1&PIC=1> >Maybe not the best quality but pretty cool for found junk from the >basement at nearly 4,812 dpi! Very clear pictures, considering. Usually, with those el-cheap single element screw on macro lenses, the contrast is drastically reduced due to lack of proper correction for spherical aberration. Another trick you can try; 90mm wide photocopier lenses turn up on Ebay, surplus markets for a few dollars and can function very well as long (450mm generally) prime lenses. There are different ways to make the housing, people used them in the 1980s and 90s as low-power telescopes. At prime, they function quite well, you just substitute the eyepiece with a camera. You can rig them up to focus from infinity to very near. http://www.dma.org/~wagner/copyscop.htm > Another trick you can try; 90mm wide photocopier lenses turn up on > Ebay, surplus markets for a few dollars and can function very well as > long (450mm generally) prime lenses. There are different ways to make > the housing, people used them in the 1980s and 90s as low-power > telescopes. Hmm, maybe if I turn it around & look at the moon! >> Another trick you can try; 90mm wide photocopier lenses turn up on >> Ebay, surplus markets for a few dollars and can function very well as [quoted text clipped - 3 lines] > > Hmm, maybe if I turn it around & look at the moon! By 20D body arrived a week before my lens. Desperate to use it I also stripped an old slide viewer. The 1st picture http://www.jonmitchell.demon.co.uk/images/JellyBeans.jpg Who needs a lensbaby ! Yes the element serves as a great Diopter too, after I've taken the green tint out. Jon > By 20D body arrived a week before my lens. > > Desperate to use it I also stripped an old slide viewer. > > The 1st picture http://www.jonmitchell.demon.co.uk/images/JellyBeans.jpg That's quite cool looking, like you spent hours in photoshop <grin>. I did more today: <http://www.edgehill.net/1/?SC=go.php&DIR=California/Bay-Area/San-Francisco/our-g arden/more/2005-01-06-macro> I had to layer together up to 5 shots for depth of field in the bug & the succulent. >>> Another trick you can try; 90mm wide photocopier lenses turn up on >>> Ebay, surplus markets for a few dollars and can function very well as [quoted text clipped - 16 lines] > >Jon Wow! Look at the coma! Nice colours! You can get pretty crazy with make-shift lenses. Use the bottom of a vase that happened to have a lens shape in it. Use a pinhole. -Rich |
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