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01-21-2009, 05:40 AM   #1
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teleconverter for macro

I have been experimenting with 100mm macro and extension tubes to get above lifesize (above 1:1) magnification. Now it seems to me tempting to try other alternatives to reach the goal. I have seen some nice photos taken with teleconverters and macro lenses. Which teleconverter do you suggest is the absolutely best quality one for using in macro photography? What about Kenko? I've heard they use Hoya glass, which should be nice, no?

Alternatively, do you think I would still get better image quality by reversing another lens in front of my macro lens?

01-21-2009, 08:02 PM   #2
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Maybe try a Raynox DCR250(Is that possible)

cheers
01-21-2009, 08:37 PM   #3
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well, if gaffer taping two raynox dcr-250's and a raynox dcr-150 together is possible to produce this:
My Eye Close Up on Flickr - Photo Sharing!

id imagine that sticking a single dcr-250 onto a macro lens is possible as long as the macro has the right thread size
01-21-2009, 09:24 PM   #4
Raylonn
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Wow that is amazing Vylen! That is actually ridiculous! Not to mention somewhat gross looking, yet beautiful all at once. I can only imagine how blind u were after taking those.

01-21-2009, 09:27 PM   #5
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QuoteOriginally posted by Raylonn Quote
Wow that is amazing Vylen! That is actually ridiculous! Not to mention somewhat gross looking, yet beautiful all at once. I can only imagine how blind u were after taking those.
haha sorry, but its not my photo unfortunately... don't even have a DCR-250... (although i have one on order) .... it just seems like its my photo cause thats how the board put the link... silly thing...
01-21-2009, 09:30 PM   #6
Raylonn
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Ohhh, ok. Yea the My Eye thing was deceptive. Still an amazing photo none-the less. I would love to try some things like that. Imagine taking a picture of a diamond or some cool rocks. THe results would be phenomenal as well.
01-22-2009, 01:57 AM   #7
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That is indeed an astonishing photo, Vylen. I'v heard a lot of good things about Raynox from superzoom camera users. I wonder though, how much does it degrade image quality on a good macro lens and how would it affect the working distance.
01-22-2009, 02:50 AM   #8
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Pentax K10D, Tamron 90mm F2/8 Macro lens & 2X Vivitar macro teleconverter. Hand held, manual focus.

50% Crop



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50% Crop



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01-22-2009, 10:34 AM   #9
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Probably better to use multi-element close-up lenses (diopters) if possible. The Pentax 100/4 Macro for 67 format comes with a lifesize converter that does a super job with virtually no image degradation.

Canon makes the 250D and 500D APO multi-element close-up lenses. I occasionally use the 500D telephoto version with the FA*80-200/2.8 and it works surprisingly well. Nikon has some like offereings too.

Pentax used to make them for medium format. In-fact, I have a 58mm Pentax version that I've never tried. My FA100/2.8 macro is out on loan so I can't try it for you right now...darn
01-22-2009, 11:53 AM   #10
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QuoteOriginally posted by Urmas R. Quote
That is indeed an astonishing photo, Vylen. I'v heard a lot of good things about Raynox from superzoom camera users. I wonder though, how much does it degrade image quality on a good macro lens and how would it affect the working distance.
The Raynox 150 and 250 diopters are amazing value IME, but they need at least a 200mm lens to get above 1:1. I have not noticed any significant deterioration on my 55-300mm except for serious vignetting with the DCR-250 at some focal lengths.
01-22-2009, 03:11 PM   #11
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You can try reverse mounting a lens... For instance a 50mm mounted inverted on top of a 300mm will give 300/50 - 6:1 magnification
01-22-2009, 09:00 PM   #12
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An easy solution is a bellows k unit, reverse adaptor k and reversing your lens. You can get up to the following magnification with these lenses:

K28/3.5 - 6.72:1
K35/3.5 - 5.31:1
K50/1.4 - 3.46:1
K50/4 Macro - 3.47:1
K55/1.8 - 2.79:1

These are the best lenses for reversing, focal lenghts over 100mm do not give magnification greater than 1:1 when reversed using the bellows unit.
01-23-2009, 06:58 AM   #13
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QuoteOriginally posted by Urmas R. Quote
I'v heard a lot of good things about Raynox from superzoom camera users. I wonder though, how much does it degrade image quality on a good macro lens and how would it affect the working distance.
The Raynox 150 and 250 are high quality close-up attachments. They are glass achromatic doublets (2 elements for better correction) and can deliver astonishingly good results. Their main advantage over bellows or extension tubes is that there is almost no light transmission loss due to these close-up attachments, meaning no exposure correction factor at all.

I always carry one in my pocket. When I want to snap a macro, I just clip the Raynox in front of the lens I am using and, voilą, instant macro!

Cheers!

Abbazz
01-24-2009, 01:55 AM   #14
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Thanks everybody for the replies!

I am not so fond of bellows. Firstly because it is somewhat cumbersome to use in the field and secondly because I think it creates a serious dust issue for the sensor.

As for the Raynox. Do you think it works with macro lenses, when the first lens element is recessed a couple of centimeters (like Pentax 100 or Tamron 90)?



ps.
Mike, you have nice photos and certainly very steady hands
Does the Viv 2x macro converter come up often at Ebay and what would be a good price?
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