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04-22-2020, 10:12 AM   #16
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QuoteOriginally posted by BryantCP Quote
I'm assuming that when you write SMC FA 50mm f2.8 macro, you mean the D FA 50mm version. If so, I would highly recommend that version. Its very sharp, flat field and has great color. Unlike the SMC A 50mm version it has auto-focus.
why

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Description:
This macro lens features 1:1 magnification. The optics are seated so far from the front that no separate lens hood is required.

Read more at: https://www.pentaxforums.com/lensreviews/SMC-Pentax-FA-50mm-F2.8-Macro-Lens.html#ixzz6KMXZjoeE

04-22-2020, 10:26 AM   #17
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QuoteOriginally posted by stevebrot Quote
The Pentax-A 50/2.8 does not support 1:1. Based on reviews and sample photos, the FA 50/2.8 offers fine performance, but the focus ring leaves much to be desired, IMHO. Is there any reason why 50mm is the target? Working distance at that focal length is unavoidably close at higher magnification and can interfere with lighting due to the lens shading the subject.


Steve
I can also use it as a normal lens, also I already have a 100mm Macro (Cosina) and 90mm (Tamron 52B). I have seen some samples of rendering wide open of the A 50mm 2.8 and I like it very much. I was wondering how the FA compares to the A since they have a different lens scheme.
04-22-2020, 10:34 AM   #18
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I have the DFA 50 macro and it is a wonderful lens. It has quickshift and the clamp which allows catch in focus. But it's true that lens shadowing is a real problem at high magnification. Removing the hood reduce the problem but does not eliminate it.
04-22-2020, 11:03 AM - 1 Like   #19
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QuoteOriginally posted by ToddK Quote
Here are a couple of samples from the FA50. Not necessarily macro shots, but show how it renders.
Stop tempting me to buy another lens, especially another 50ish one.

04-22-2020, 11:19 AM - 2 Likes   #20
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QuoteOriginally posted by MossyRocks Quote
Stop tempting me to buy another lens, especially another 50ish one.
Well, if you want to not be tempted to buy another 50mm lens, you might not want to look at trying to find an FA* 200/4 macro.
Just sayin....
04-22-2020, 11:42 AM   #21
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QuoteOriginally posted by D1N0 Quote
I can also use it as a normal lens, also I already have a 100mm Macro (Cosina) and 90mm (Tamron 52B). I have seen some samples of rendering wide open of the A 50mm 2.8 and I like it very much. I was wondering how the FA compares to the A since they have a different lens scheme.
OK...I only commented because you said 1:1 was a requirement.


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04-22-2020, 11:54 AM   #22
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The Vivitar (Komine) 55mm 2.8 is impressively sharp and inexpensive, does 1:1.
The main cons: may take some time to find K mount version and only stops down to f/16

Vivitar (komine) 55mm f2.8 (f3 - early version); 1:1 macro Lens Reviews - Vivitar Lenses - Pentax Lens Review Database

https://www.ephotozine.com/article/vivitar-auto-macro-55mm-f-2-8-vintage-lens-review-32163

https://www.outsidetheshot.com/vivitar-55mm-f-2-8-macro-lens-review/

Last edited by kayakfari; 04-22-2020 at 11:59 AM.
04-22-2020, 12:01 PM   #23
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QuoteOriginally posted by Wheatfield Quote
Well, if you want to not be tempted to buy another 50mm lens, you might not want to look at trying to find an FA* 200/4 macro.
Just sayin.
I already want that one. It would be a nice fried for A* 400/2.8 I own.

04-22-2020, 01:20 PM   #24
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QuoteOriginally posted by stevebrot Quote
OK...I only commented because you said 1:1 was a requirement.
I wonder where I said that. I wanted to take it out of the equation, because it is not that important to me. The same with AF.
04-22-2020, 02:50 PM   #25
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QuoteOriginally posted by ToddK Quote
Here are a couple of samples from the FA50. Not necessarily macro shots, but show how it renders.

Two beautiful samples!
04-22-2020, 03:07 PM   #26
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QuoteOriginally posted by D1N0 Quote
I was wondering how the FA compares to the A since they have a different lens scheme.
I don't own either of these lenses, so can't comment specifically on them. In general terms though, I've read that older lenses with fewer elements are better at 3D rendering and poorer at CA control. Newer lenses with more elements control CA better, but lose some of the 3D 'character'. This is a broad generalization, and no doubt some will dispute it. I just throw it out there for others more knowledgeable to discuss.
04-22-2020, 04:30 PM   #27
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QuoteOriginally posted by D1N0 Quote
I wonder where I said that. I wanted to take it out of the equation, because it is not that important to me. The same with AF.
Sorry, my mistake.


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04-22-2020, 10:02 PM   #28
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QuoteOriginally posted by MossyRocks Quote
I already want that one. It would be a nice fried for A* 400/2.8 I own.
I plan on being cremated with my copy of it.
04-23-2020, 12:14 AM   #29
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I am very impressed with my A50/2.8. It's likely the sharpest lens for Pentax I have. The lens is well-built. I use it with a gutted 2x tele-convertor when I want more magnification. It's the 50mm I use unless I want shallow DoF.
04-23-2020, 03:50 AM   #30
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QuoteOriginally posted by Wheatfield Quote
I've never met a macro lens that wasn't a very good lens.
As Wheatfield says...... I have the A 50mm. It is beautiful. A setting very convenient. Only lacks 1:1, which is pretty silly at this focal length anyway , which can be remedied which an extension tube or close up filter if required, and AF which is not needed for close up work but may be useful for more general photography. Personally though I prefer my K 50mm f4, for its' superior build quality and its' je ne sais quois in terms of IQ. Unless you need f2.8, I would not discount either the K or M f4 model especially if you already have a fast 50mm.
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