PMA 2009

Discussion of all digital SLR cameras under the Minolta and Konica Minolta brands
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Greg Beetham
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Re: PMA 2009

Unread post by Greg Beetham »

Oops, 35-36 is 1X on APS-C not 24, :oops: 24mm is useful for interior shots on both formats but will most likely need some PP straigtening, that is, in lieu of having a 24 T/S, it's a little bit embarrassing that there is no news on a couple of T/S lenses for the A-mount yet, (a 28 or 35 T/S) wouldn't go astray either.
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Re: PMA 2009

Unread post by PhotoTraveler »

what do you mean 1X?

are you trying to think in terms of 3x zoom like P&S? If so, there is no match up to that, it's a meaningless term. 50-150 is a 3X, 10-30 is a 3X, it's not a FL.
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Greg Beetham
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Re: PMA 2009

Unread post by Greg Beetham »

The human eye is 1X or 1 power magnification, and so has a lens that has zero magnification on the format it was designed to be the standard lens for, in other words zero magnification or reduction of any component in a scene in relation to every other component and also to reality, not like wide angle lenses that have LESS than 1X and thus distort perspective compared to reality.

The human eye has a much wider field though than a standard lens, but it's it's not much use sharpness wise, the peripheral vision is only good for detecting motion basically, like a pouncing tiger or such.

some standard lenses
35mm f/1.2G standard lens or (1X power) on APS-C
50mm f/1.4 standard lens or (1X power) on FF
75mm f/2.8 standard lens or (1X power) on 645
100mm f/3.5 standard lens or (1X power) on 6X7

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Re: PMA 2009

Unread post by A1000 »

Would not 43 mm be the 1x magnification factor on 35 mm FF?
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Greg Beetham
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Re: PMA 2009

Unread post by Greg Beetham »

It's often given as 47mm in many publications, but the closest standard lens is of course the 50mm, so I never really quibbled about the 3mm, you or I would probably never notice that small amount of discrepancy over what the eye saw and what the photo ended up showing...I guess one could print the photo out at billboard size and hang it somehow at the location where the photo was taken and compare it against the real thing...who knows, you or I might spot some small difference in perspectve. :)
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A1000

Re: PMA 2009

Unread post by A1000 »

the diagonal on FF is 43.3 mm. Sure it makes no difference.
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Greg Beetham
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Re: PMA 2009

Unread post by Greg Beetham »

For what it's worth, I'm not advocating that every scene should be shot at 1X, there's lot's of places where a standard lens (even panned) just wouldn't work very well, tall buildings for one, there a T/S of whatever suitable FL would be best, and there are some scenes where there wouldn't be room to pull back enough to fit the scene "in" properly even in portrait orientation, but there would still be some scenes that would look very nice done at natural view. The major drawback is, there would be a lot more leg work involved, compositional wise, using a set/fixed FL ......
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Re: PMA 2009

Unread post by A1000 »

you need different focal lenths to control perspective, DOF, etc.
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