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10-20-2012, 10:04 AM   #1
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Macro 5X

Hello!

I would like to practice super macro with my 67. So far I have a 200mm and the extension tube set. I have no clue in what magnification this stack is resulting but it's not enough for me... So my question would be: If anyone has experience with super macro (MF 67) going to up to 5X magnifcation? - I think first of I will get the 2X rear converter... Would be really interesting to get some suggestions.

Thanks in advance!

10-20-2012, 10:19 AM   #2
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Do you have a 40mm to reverse onto the 200?
10-20-2012, 10:24 AM   #3
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I have a 55mm, would that work likewise?
10-20-2012, 11:06 AM   #4
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I actually just tried it - put my 55mm reversed on my 200mm plus extensions. Now I can get even closer than I would want to... So thanks, I think the idea of reversed lens stacked already helped me out!

10-20-2012, 02:12 PM   #5
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Pentax made the Auto Bellows for such purposes. I know it will go to 3X with a 105 lens. With the 200 mm, it should work better. I have seen them at KEH (in the U.S.) at good prices.

Last edited by desertscape; 10-20-2012 at 02:43 PM.
10-20-2012, 02:47 PM   #6
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Yes, good idea too... The ones I can find are a bit expensive though...(Germany), but it should be much more comfortable to work with the auto bellows! Well I will try with this set up: Name:  IMG_0793.jpg
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10-20-2012, 03:16 PM   #7
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With your current setup, you will have to keep your shutter speed out of the 1/2 to 1/30 second range due to the long lens group with no tripod mount on it. Shutter vib will be amplified badly.
10-20-2012, 09:00 PM   #8
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I haven't tried it yet, but I have the 67mm reverse adapter that I've mounted my SMC Pentax-A 35-105mm to, and set at 35mm it get's you super close. Not sure if it will vignette though.

10-21-2012, 08:21 AM   #9
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Using as standard zoom from the K-Series is no bad idea - The Tamron 17-50/2,8 looks quite nice in the viefinder oof my 67, but I have never tried to make pictures yet.
10-21-2012, 09:42 AM   #10
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QuoteOriginally posted by Josias Quote
Yes, good idea too... The ones I can find are a bit expensive though...(Germany), but it should be much more comfortable to work with the auto bellows! Well I will try with this set up: Attachment 144141
Amazing !

I would be interested to see samples taken with it : what about additionnal light needs ?
10-21-2012, 09:58 PM   #11
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Yes I also want to see photos from that setup. Someday soon I'm gonna try that with my 645.
10-24-2012, 10:36 AM   #12
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Hi there everyone! There seems to be some interest in this... - So far I am still making some tests to see how to deal with this set up. Like I said before: I don't know what magnification this results in but I am somewhere in the 'eye-bulb-range'. There is no vignetting - that is because of the extension tubes. Without the tubes I get a perfectly round picture. There is most certainly additional light need and since I am out on the street with it I will go for a flashlight. Distance to the subject/object is minimal (~5cm). Mounting this thing on a tripod is what I need to figure out - well I did already (Manfrotto 293). I think its all manageble if your at home/studio with the setup I have got and I will make a sample just to get an idea of the final outcome - but for the street I will go for the bellows I think...
10-25-2012, 12:59 AM   #13
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200mm with 2 and 3 ext tube

tried it recently on 645D.
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10-25-2012, 08:25 AM   #14
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According to the 6x7 Extension Tube Manual, the 200mm with 3+2+1 extension tubes has a 0.59 magnification with a 34in (86.5cm) film to subject distance.

You can calculate the extension tube magnification as follows:
M = ( ML X F) + E / F
Where:
M = Magnification
ML = Magnification of the lens
F = Focal length
E = Extension tube length in mm
For the 200mm f4 lens, ML = 0.10 and 3+2+1 extension tubes = 56 + 28 + 14 = 98mm. But note this is for the Takumar and 6x7 generation of the 200mm. The 67 generation can focus closer.
M = [(0.1)(200) + 98 ] / 200 = 0.59



Last edited by tuco; 10-25-2012 at 09:27 AM.
10-25-2012, 02:11 PM   #15
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QuoteOriginally posted by tuco Quote
According to the 6x7 Extension Tube Manual, the 200mm with 3+2+1 extension tubes has a 0.59 magnification with a 34in (86.5cm) film to subject distance.

You can calculate the extension tube magnification as follows:
M = ( ML X F) + E / F
Where:
M = Magnification
ML = Magnification of the lens
F = Focal length
E = Extension tube length in mm
For the 200mm f4 lens, ML = 0.10 and 3+2+1 extension tubes = 56 + 28 + 14 = 98mm. But note this is for the Takumar and 6x7 generation of the 200mm. The 67 generation can focus closer.
M = [(0.1)(200) + 98 ] / 200 = 0.59


According to that formular the 35mm-Fisheye would make 1:2,9 - dont ask me how close taht ist to the front lens
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