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04-21-2012, 11:56 PM   #1
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Which would you keep the K50 f1.2 or teh A50 f1.2?

Hello

For the owners of these lenses, I was wondering which glass do you prefer?

Thanks

04-22-2012, 02:54 AM   #2
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Same glass. The A is worth about 2x-3x as much as the K.
04-22-2012, 03:52 AM   #3
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QuoteOriginally posted by RioRico Quote
Same glass. The A is worth about 2x-3x as much as the K.
Really? I got my A50 1.2 for a bit more than 400 on 'bay and I don't think I ever saw the K going for less than 300. Is the bay (Germany) strange here or do I misremember?

As to the original question: The A is simply stunning, one of my three favourite lenses, I would be curious if anybody compared it to it's older brother. While the formula for both lenses is the same, the coatings should be different, shouldn't they?
04-22-2012, 04:07 AM   #4
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In theory the optics are equal, but of the 2 you have which copy is better? Keep that one. If they a equal keep the A.

04-22-2012, 04:35 AM   #5
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QuoteOriginally posted by mano Quote
Really? I got my A50 1.2 for a bit more than 400 on 'bay and I don't think I ever saw the K going for less than 300. Is the bay (Germany) strange here or do I misremember?
I'm in USA. I got my K for US$250 -- from a marketplace, not the bay. I've seen K's recently for US$300-350. I've seen A's recently for US$600-750. I stand by my 2x-3x approximation. Your country may vary.

My K is superb but it's not an A nor a preset. K's require a somewhat slower approach. If I had to choose between an A and an optically better K? Hmmm, tough choice. I'll dither.
04-22-2012, 09:12 AM   #6
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Without having ever used the A version, it's hard to tell. The A version probably has slightly different ("updated") coatings and probably renders colors differently from the K version. From what I've seen from A series glass, those lenses tend to render colors a bit more realistically though without as much character as K series glass. As I tend to prefer the more distinctive rendering of the K series glass, I think would take the K version.
04-22-2012, 10:15 AM   #7
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The only other difference between the K & A 50/1.2 is the weight. The K weighs 40 grams more which probably means the A version has less metal and more plastic.

Phil.
04-22-2012, 10:57 AM   #8
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If both copies are equal relative to sample variation, I would keep the A 50/1.2 because it has the A contacts. The K has 8 aperture blades and the A has 9 aperture blades. That may or may not translate into anything effecting bokeh etc. As far as weight goes, the A is 349 grams and the k is 385. Some of that 36 g difference could be differences in machining designs of the parts.

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