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12-11-2013, 04:15 PM   #16
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QuoteOriginally posted by Nass Quote
Kurt, it'll work just fine if you want to get your feet wet at about 2.5:1 - see Coupled Reverse Lens
In the article, it mentions to stop down the secondary (reversed) lens. Is it best to leave the primary (the one attached to the camera) wide open?

12-12-2013, 02:31 AM   #17
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QuoteOriginally posted by cali92rs Quote
In the article, it mentions to stop down the secondary (reversed) lens. Is it best to leave the primary (the one attached to the camera) wide open?
i think you have to adjust the first one and see what gives you the sharpest image
12-12-2013, 09:52 AM   #18
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QuoteOriginally posted by cali92rs Quote
In the article, it mentions to stop down the secondary (reversed) lens. Is it best to leave the primary (the one attached to the camera) wide open?
That seems to be the prevailing advice. I think that once you get your rig set up, you simply try both ways and take whichever gives you the results YOU want.
12-12-2013, 10:11 AM   #19
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That is of course true, Canada_Rockies, however you'll find that if you use the non-reversed lens aperture rather than the reversed one it will let through a lot of optical abberations because it's far away from the 'optical centre' of the combined lens. The centre of the combined lens is actually still for all intents and purposes physically the centre of the reversed lens - the non-reversed lens is just acting as a tube lens. You start getting quite nasty and strange image abberations when you move the aperture away from the optical centre.

12-12-2013, 10:47 AM   #20
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Thanks for the explanation, Nass.
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