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Old Apr 8, 2010, 9:50 AM   #51
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Originally Posted by TCav View Post
My guess is that, in your last photo, you're actually getting a little bit better than 1:1, though it's obviously a crop and I've no way to determine how much you cropped it.

A simple way to judge would be to take a photo of a ruler....
I'll try the ruler later! The images are crops, but only to make them square - they were shot at the full 4000x3000, cropped to 3000x3000, then finally reduced to 800px for posting here.

It would be interesting to see other m4/3 "macro" photos of that iPhone mail icon for comparison.... the icon measures approx 9mm x 9mm.
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Old Apr 8, 2010, 10:16 AM   #52
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Because different lenses project images in different ways, there's no way to know ahead of time how an extension tube will affect the angle of view, and therefore, how much compensation is necessary for camera shake.
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Old Apr 9, 2010, 6:56 AM   #53
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Default Ruler test: looks like 1.5x magnification...

OK, so I did a quick ruler test with all 3 tubes (68mm extension) and the 50mm, and this was the un-cropped result.....



I didn't stop down, so the depth-of-field is extremely thin and it's a technically terrible image, but - unless my maths fails me - what this does illustrate is that my 10 worth of tubes and my 20 lens has indeed bought me true 'macro', with a maximum magnification of around 1.5x (since the image is 12mm or so wide, and the sensor 17.3mm).

Did I get that right..? Even if I didn't, it's got to be 2 thumbs up for the extension tubes as a macro-on-a-budget option, even if it's 2 thumbs down for the example photo
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Old Apr 9, 2010, 9:05 AM   #54
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That looks right to me (despite how painful it is to look at. )
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Old Apr 9, 2010, 9:36 AM   #55
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Cheers TCav, and apologies for any discomfort
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Old May 19, 2010, 5:58 PM   #56
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Since my 'macro-on-a-budget' solution has moved on a bit, I thought I'd revive this thread for anyone who is still investigating what is possible with old, inexpensive lenses on m4/3....

Having picked up a Canon FD 70-210 f/4 Macro lens, I have found it to be an extremely versatile lens to have in my bag, even more so now that I've sussed out its' macro capabilities. Maybe it was a lucky find, but my 10 lens (yes, 10!) is sharp wide open and renders great contrast and colour. It's my new favourite lens

In case you missed it, read about my "D'oh!" moment, and check out some samples over in the Panasonic/Leica DSLR forum here.
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Old May 20, 2010, 12:23 AM   #57
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Old May 20, 2010, 5:38 AM   #58
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Hey pbj,
I (and others) have mounted ordinary hand magnifying lenses on bellows and shot decent close and not-so-close images. A bit of CA maybe, but it's cheap. And I've rigged a magnifier to sit angled in front of a P&S lens, to give some nice funhouse distortions. But I admit, it's no fun trying to shoot through a jeweler's loupe.
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