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08-25-2009, 12:24 PM   #1
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lenses for k10d shooting macro?

Hi.
Having trouble to decide which lense I will purchase for my Pentax k10d.
I am a happy amateur and not a millionaire.
I am mostly into abstract nature - that's why I want a macro lense. But I like taking portraits too. There is a jungle of lenses, please help me with advice regarding preferance of a lense! I have been thinking about one of these:

Pentax SMC-D FA 50mm F2.8 or
Pentax SMC-DA 35mm F2.8

... Or let me know if you think others are better!
Thank you.

-Sil

08-25-2009, 12:45 PM   #2
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I recommend something with greater focal length - 90mm or 100mm.

With 50mm or 35mm focal length, when you get to 1:1 magnification, the subject is inches from the front of the lens, blocking the precious light. Many times you can't even use a lens hood, and there is no space for a ring light.

Pentax 100mm 2.8 is excellent.

The photos in this post are with a K10D and Tamron 90mm macro 1:2.8 and a ring flash - not abstract nature but a data point. The first photo is very near 1:1.

The Tamron 90mm is great for portraits, even though it's too tight sometimes. I prefer a 70mm.

Last edited by SOldBear; 08-25-2009 at 12:55 PM.
08-25-2009, 12:49 PM   #3
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QuoteOriginally posted by SOldBear Quote
I recommend something with greater focal length - 90mm or 100mm.

With 50mm or 35mm focal length, when you get to 1:1 magnification, the subject is inches from the front of the lens, blocking the precious light. Many times you can't even use a lens hood, and there is no space for a ring light.

Pentax 100mm 2.8 is excellent.
I'll second the A 100/2.8 macro. It doesn't show up often in the used market and can be a tad expensive. Actually it can be absurdly expensive. There is one on EBAY currently for about $1,500. This is more than twice what I paid for it new. I any case it is a fine lens. Here's one from today from my A 100/2.8 macro.



Tom G

Last edited by 8540tomg; 08-25-2009 at 03:20 PM. Reason: typo
08-25-2009, 02:15 PM   #4
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The other option as a good compromise between portraiture and macro is the Sigma 70 macro - and there's one on the forum's marketplace if you're interested...

08-25-2009, 02:45 PM   #5
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Here we go - and still available if you want it...
https://www.pentaxforums.com/forums/photographers-marketplace/70542-sale-sigm...2-8-ex-dg.html
08-25-2009, 03:59 PM   #6
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The Tameron DI 90mm Macro is probably the pick of the bunch if you read the reviews. Sigmas 105mm Macro is also a good lens

David
08-25-2009, 04:01 PM   #7
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What about the F 100mm 3.5 and add a diopter for 1:1. Isn't that a hell of a lot cheaper?
08-25-2009, 05:26 PM   #8
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my .02 is sigma 90 with macro. I've used it a couple of times and have had pretty good success for a beginner.

08-26-2009, 10:34 AM   #9
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I would suggest the Sigma 105mm F2.8 Macro. It is a very sharp lens and older versions come up on eBay at comparatively reasonable prices.
08-26-2009, 10:58 AM   #10
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A 90mm might be too long for comfortable a portrait distance.

A good choice would be the Sigma 70mm macro. It's one of the sharpest, if not THE sharpest, lens that Sigma makes.

Sigma Sigma 70mm f/2.8 EX DG Macro AF - Lens Review from Experts at Popular Photography- Photo Tips

QuoteOriginally posted by sil987 Quote
Hi.
Having trouble to decide which lense I will purchase for my Pentax k10d.
I am a happy amateur and not a millionaire.
I am mostly into abstract nature - that's why I want a macro lense. But I like taking portraits too. There is a jungle of lenses, please help me with advice regarding preferance of a lense! I have been thinking about one of these:

Pentax SMC-D FA 50mm F2.8 or
Pentax SMC-DA 35mm F2.8

... Or let me know if you think others are better!
Thank you.

-Sil
08-26-2009, 02:20 PM   #11
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QuoteOriginally posted by David Quote
The Tameron DI 90mm Macro is probably the pick of the bunch if you read the reviews. Sigmas 105mm Macro is also a good lens

David
Just rec'd mine in the mail today Ran out and here is my first shot. No crop.
Attached Images
 
08-26-2009, 02:29 PM   #12
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That little bug must be REALLY small...
08-26-2009, 06:57 PM   #13
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Get the Sigma 180mm Macro. It will change your life.



08-26-2009, 06:58 PM   #14
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Maybe the bug would look bigger if you got closer to it.

I guess I have been doing macros with the DA 35 and find it excellent as long as you don't mind getting close to the things you are capturing. Some bugs are pretty flighty, although on a hot summer day, butterflies tend to stay pretty still and you can get awfully close to them.

That said, I would seriously consider a manual focus lens, if all you are interested in is macro shots. Auto focus is over rated for macros. You're much better using a tripod and manually focusing, or even hand holding and just moving the camera in and out till you are in focus.
08-26-2009, 07:18 PM   #15
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I highly recommend the Tamron 90mm/2.8 Di for macro, however, I do find it a tad long for portraits. Too bad they are giving Pentax the finger on their new 60mm/f2 macro.

Here's one from the 90mm Tamron (handheld, focused manually):

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