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06-03-2011, 09:28 AM   #1
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macro lenses

ok guys/girls/ladies
opinions on a macro lenses for my K100D, which are the best focal length for general use, and have decent build quality thanks john.

06-03-2011, 09:45 AM   #2
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Here's my recommendation, as it's a great lens overall: Pentax-D FA 100mm F2.8 WR Macro Review

Stay away from shorter FLs as they're not nearly as useful most of the time.

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06-03-2011, 10:09 AM   #3
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This question is about lenses, not cameras, so I'm moving it to the appropriate forum. Note that it's also been asked dozens of times before; you might want to do a quick search for the many previous threads on the topic.
06-03-2011, 10:10 AM   #4

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What's your budget?

Tamron 90/ Sigma 105/ (D)FA-100 are some of the options - depending on your budget.

06-03-2011, 10:23 AM   #5
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The question: Repeated many times.
The answers: Repeated many many times.

Shorter lenses for close studio work.
Longer lenses for farther field work.
A-type or AF lenses if you're using flash.
WR lenses if you're shooting in mucky weather.

Older manual lenses if you're on a budget.
Reversed or enlarger lenses or extension for a TIGHT budget.
Spend anywhere from US$10 to US$1000 -- it's up to you.
06-03-2011, 10:49 AM   #6
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Staying away from shorter FL is not too strong statement. I agree that approx. 100mm is about ideal for beginners, I like my DFA50/2,8 a lot and I had a good time with borrowed 35mm limited macro as well.
I'd say anything betwen 50 and 100 would do.
Just don't make the same mistake as I did to buy 180mm beast as your first macro lens.
06-03-2011, 10:54 AM   #7
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I picked up the Pentax-D FA 100mm F2.8 WR Macro last year for my K-7, and its a fntastic lens. You may also want to consider the 35mm Macro as well. Both great lenses.
06-03-2011, 11:25 AM   #8
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you need to consider all the options.

I have 3 macro sets none of which are overly expensive, all used.

cheapest set, total paid for all components is about $102cdn.

S-M-C Macro-takumar 50mm F4 plus extension tubes +15-30mm macro focusing helix (variable length extension tube) maximum magnification is 1.5x

Next cheapest is an old Miranda bellows, which came with a 135mm T mount lens (scrapped), and converted to a 135mm enlarging lens, plus 2 additional T mount adaptors (one an M42) plus a full set of miranda M44 extension tubes, and the back modified and a flanged M42-K adaptor added, so it could mount to my cameras. Total invested $125 cdn, Maximum magnification is 1.12x with the 135mm lens, but great working distance. Magnification can go to 5x easily by adding my M42 macro kit on the front end. Nice thing about bellows is that they can take many lenses

Most expensive is SMC-M 100mmF4 macro (paid $139 for the lens many years ago, plus Vivitar K mount extension tubes $70 new in the 1980's, and a vivitar 2x Macro focusing teleconverter $70 used. With this setup it is easy to get to 2x and still have good working distance. total invested is about $275

I also have several lenses that can go close, but not true macro.

I have no AF macro lenses, because I feel AF does not always focus on the parts I want in focus.

One additional thing to note is that starting with the super takumars and going at least to the M series lenses, all pentax macro lenses (either 50mm or 100mm) had the same optics just that newer lenses had better coatings.

06-03-2011, 11:33 AM   #9
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thanks for all your advice will look at the 100m pentax lens
06-03-2011, 06:32 PM   #10
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Get a proper 1:1 macro (IMHO)
06-03-2011, 07:22 PM   #11
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The looong choice

I guess it all depends on how ya define macro and what ya call short an' long FL's. When you're new to the game they're all fun and each FL has it's ideal use.

What sort of macro do you have in mind -- 8/10's of an inch, 8 inches or 8 feet?


06-03-2011, 07:44 PM   #12
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Pick of the bunch for Pentax cameras: definitely the DFA 100 f/2.8 macro - WR if you want weather sealing (good for being out in the rain, dust or wind with it).
06-06-2011, 05:38 AM   #13
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anything longer would be great with macros. the general thought is, for macros it is nice to have more working space. if you are not in a hurry, you might want to wait for the Sigma 150.
06-06-2011, 01:22 PM   #14
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Well look here and maybe in future an extra (expensive) choice.
06-06-2011, 01:54 PM   #15
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I am currently waited on the weather sealed Sigma 150mm HSM OS.

I used the 150mm Sigma on my E-3 and it was really an impressive lens. HSM means that it is not slow like most other macro lenses. I want a lens that I can use for macro, but still be fast enough for people and telephoto work. The Sigma appears to fit that bill.

Just have to wait for the reviews.

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