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Old Sep 21, 2011, 2:50 AM   #1
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Default I'm all tumbs, just broke my macro lens, and got a new one.

Yesterday midday .... after lugging my kiron 105mm around for 6 years I dropped it

It looked fine so I put in on the camera only the aperture didn't work, so I tried getting the lens of the camera....
Took me a bit more time than expected, shaking the camera helped.
I hadn't noticed that the metal thingy on the back of the lens (sorry I don't know it's name)
that sets the aperture was hanging loose, bend and was the thing that got stuck when connected to the camera.

So, back at work I checked the internet for what would be a good macro lens (range 100mm), decided on getting the sigma 105mm.
Contacted the shop where I get my stuff (located on walking distance from my work - really unhealthy).
They had the tamron 90mm, sigma 105mm, pentax 100mm in and I could come over to check them out.

Stayed with my first idea and got the sigma 105mm.

Here is my first 1:1 shot of a small bug that is on the ceiling in the hall.
SIGMA 105mm macro lens

larger (full size) click here

and this is the same bug a few days ago with the KIRON 105mm

larger (full size) click here

both images where with a flash, at 1/180sec, f11, iso80

So far I'm happy with the sharpness, don't really see much difference only the color of the sigma looks a bit warmer. The only big big difference is the plastic versus metal. The sigma weighs a small kilo less than the kiron.


Cheers

Ronny
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Old Sep 21, 2011, 9:47 AM   #2
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Exposure looks a bit lighter (I've seen that a lot with modern lenses compared to many of my old lenses). While its hard to tell with this subject, I sometimes see that modern lenses also provide greater saturation, and that can work against you when trying to extract the maximum amount of detail from a picture (especially if your subject is a brightly colored flower). From this example I would say that your Sigma doesn't suffer from that at all - lots of detail in the picture. Other than the exposure, slight color differences and a slightly different focus point, there's not much difference between the pictures. Looks like it will be a worthy successor to your poor Kiron.

When you mentioned your store had the Pentax 100 - was it the WR version or the earlier one? If it were the WR version, what was your reason for choosing the Sigma over it? Just curious, in case I ever have to replace my Viv 105 macro. I've been leaning toward the Pentax WR.
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Old Sep 21, 2011, 10:09 AM   #3
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They had the WR - pentax-DFA macro 1:.... looks good and worked as good as the others and I had two reasons for not buying it.
  • the price, its 100 more expensive than the Sigma.
    ok I could get more money for it when I sell it, but .... I've never sold any camera equipment ever.
  • and the real reason, why did they remove the aperture ring.
    I've got some extention tubes, that would work with it but I don't see how I can use my bellows and set the aperture without guessing.
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Old Sep 21, 2011, 11:25 AM   #4
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Ouch, that's hard on the pocket book, Ron!
But a darn good reason to get a new lens.

Looks good!
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Old Sep 21, 2011, 2:02 PM   #5
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Thanks for your explanation - great points to consider. Hadn't even thought of the fact it doesn't have an aperture ring - that would be a problem with my extension tube, which doesn't have contacts.
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Old Sep 21, 2011, 2:51 PM   #6
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Quote:
Originally Posted by Goldwinger View Post
Ouch, that's hard on the pocket book, Ron!
But a darn good reason to get a new lens.

Looks good!
It's a good reason but ... I really liked the kiron, and it takes so long for my (private) pocket book to grow again.

Thanks GW
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Old Sep 21, 2011, 4:01 PM   #7
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Had some time this afternoon to take the Sigma 105mm out.


larger version resized to 3000x 2000 click here

7 pictures focusblended at
Exposure Time: 1/179 - F Number: 4.5 - ISO Speed Ratings: 200
Flash: Flash fired, compulsory flash mode - Focal Length: 105


Can't find anything wrong with the lens so it's a keeper.

Ronny
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Old Sep 21, 2011, 6:51 PM   #8
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Very sorry about the demise of your beloved Kiron, but the photos you've shown that were taken with the Sigma are excellent.
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Old Sep 21, 2011, 7:32 PM   #9
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I agree with mtnman, sorry and have fun with the new toy, must be nice to be able to walk or even drive to a store that handles Pentax, I haven't found one within 400 miles of South East Michigan, for me it's online or nothing.
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Old Sep 21, 2011, 9:43 PM   #10
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Ronnie, So sorry to hear of your lenses demise. Ouch! But, glad you are back in business. And, so quickly. I'm like the others. It's online or nothing for me.

Patty
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