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03-17-2008, 05:45 PM   #1
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any 50mm macro users?

The Pentax gallery only has 2 images for the 50mm macro. I had the 100mm but wasn't crazy about the feel of it (using with a K10d, have a K20d now). Previously I had a Nikkor 105mm that had great build quality but I admit that I had a tough time with the narrow DOF.

All other things being equal, the 50mm should have a tad more DOF than the 100mm, correct? I'm liking 50 because it would sit inbetween 31mm and 77mm primes. The 35mm macro really intrigues me but seems like somewhat duplication with the 31mm, but for 50mm a used 1.4 or 1.7 is easy to come by.

I don't mind getting up close and personal with my subjects, so the telephoto aspect of the 100mm isn't a huge advantage in my case. Plus I have a 50-135* to cover the long end for other tasks and the 77mm is divine for portrait and anything else. Before this I shot macro on my various p&s cameras to good effect, and that is where I got used to having a bit more DOF.

So any 50 macro shooters?

03-17-2008, 06:07 PM   #2
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if you're on a budget and want a pentax lens, you might want to consider the 50mm macro f4 ... i just got a SMC Macro Takumar and it seems super sharp. as well, the smoothness of the focusing ring is unbelievable. here's a 100% Corner Crop of some noodles i had on the weekend, i believe it's f/8 or f/11, handheld too

although note it's 1:2 and not a 1:1 lens

Last edited by k100d; 03-20-2008 at 06:36 PM.
03-17-2008, 06:24 PM   #3
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Hi Nostatic

I have got a FA50/2.8 Macro. It has got a better build quality (metal barrel) than the DFAs. This is one sweet lens to use. SHARP wide open and very nice bokeh. Here is a quote from Bojidar Dimitrov's Pentax K-Mount Page (http://www.bdimitrov.de/kmp/lenses/primes/normal/FA50f2.8-Macro.html):

QuoteQuote:
Subjective Evaluation

Optically this lens is virtually perfect.

It is extremely sharp, corner to corner, at 1:1 or at infinity. Wide open it is better than many lenses at their optimal apertures, and when stopped down to f/5.6 or f/8, it matches the very best. It even slightly outperforms Pentax's 100 mm macro lenses.

The lens' colors are very neutral, the contrast is excellent, and there is no noticeable distortion. Light fall-off is barely visible wide open and non-existent when the aperture is closed down a stop or two. Bokeh is very smooth, and flare resistance is superb.
cheers
Kenny
03-17-2008, 07:11 PM   #4
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.


I have an SMC-M 50mm f/4 macro (1:2) that I bought in the Marketplace forum last month, and it's close to perfect. I almost never see this lens anywhere - I do see the screw-mount version, and I see the 50 f/2.8 everywhere, but not the SMC-M 50 f/4. Pick one up if you see one, I highly recommend it.


.

03-17-2008, 08:25 PM   #5
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I've had A/F/FA 50mm macro lenses, and the only one I'm keeping is the A50/2.8 macro. It's such a beautiful little lens, take wonderful photos too. 1:2 mag ratio is good enough for my needs. The MF feel is incomparable by the other two.

Of course if you need 1:1 mag ratio, you can't go wrong w/ any of those 50mm macro lenses.
03-18-2008, 03:20 AM   #6
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I regularly use the FA 50mm f/2.8 for product shots. I second kjao's comments. It is such a fantastic and versatile lens that I have no plans at all to replace it. The wide field of view of the 50mm macro makes it useful for products and still life.
03-18-2008, 04:46 AM   #7
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QuoteOriginally posted by frank Quote
I've had A/F/FA 50mm macro lenses, and the only one I'm keeping is the A50/2.8 macro. It's such a beautiful little lens, take wonderful photos too. 1:2 mag ratio is good enough for my needs. The MF feel is incomparable by the other two.
I have both the A and FA50/2.8 macros and whilst I'll concede that the FA is a slightly better lens optically I tend to use the A version far more often, it's a great little lens and very versatile. I think people get a bit hung up on long Fl macro lenses but for a lot of macro work 50mm (or even shorter) is just fine.
03-18-2008, 08:31 AM   #8
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QuoteOriginally posted by distudio Quote
I have both the A and FA50/2.8 macros and whilst I'll concede that the FA is a slightly better lens optically I tend to use the A version far more often, it's a great little lens and very versatile...
That's why I didn't keep the AF ones. It's such a joy to use or just hold this little A50/2.8 lens. I still think it's one of the best 50 lenses (my other favorite is the A50/1.2).

03-18-2008, 08:35 AM   #9
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QuoteOriginally posted by nostatic Quote
The Pentax gallery only has 2 images for the 50mm macro. I had the 100mm but wasn't crazy about the feel of it (using with a K10d, have a K20d now). Previously I had a Nikkor 105mm that had great build quality but I admit that I had a tough time with the narrow DOF.

All other things being equal, the 50mm should have a tad more DOF than the 100mm, correct? I'm liking 50 because it would sit inbetween 31mm and 77mm primes. The 35mm macro really intrigues me but seems like somewhat duplication with the 31mm, but for 50mm a used 1.4 or 1.7 is easy to come by.

I don't mind getting up close and personal with my subjects, so the telephoto aspect of the 100mm isn't a huge advantage in my case. Plus I have a 50-135* to cover the long end for other tasks and the 77mm is divine for portrait and anything else. Before this I shot macro on my various p&s cameras to good effect, and that is where I got used to having a bit more DOF.

So any 50 macro shooters?
I've got a Sigma 50mm f2.8 and it's really sharp.

Check out this thread:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/22694-help-macro-selection.html

Basically at macro magnification, the DOF is not affected by the focal length. As soon as you focus in a normal situation you betcha the 50mm has more DOF, but not at macro. And to be honest the field of view isn't as big of a difference as I expected either. It boils down to working distance more than anything.

Cheers, Matt
03-18-2008, 09:21 AM   #10
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The FA50 Macro is very good. I also use it as a normal, and it does that really well too (a handful of my flickr photos are taken with it by searching 50mm or macro).

I also had the A50 macro, and while I liked the fact it was much more compact, AF is quite valuable to me. It was very nice in all other aspects though, and 1:2 is definitely enough most of the time.
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