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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 07 Jan 2015 (Wednesday) 20:43
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New lens decision

 
GeoKras1989
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Post edited over 4 years ago by GeoKras1989.
     
Jan 08, 2015 19:09 |  #16
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FEChariot wrote in post #17372972 (external link)
I don't know about the 100/2, but with my 65mm worth of Fotodiox tubes, I can get a .88x magnification on my 85/1.8 and it does everything else better than my Canon 50/1.8. That's a 25mm subject with my 22mm sensor. That's not horrible for macro. For reference, the 50/1.8 gets a 1.3x magnification with the same set of tubes, but that is the only thing the 50/1.8 does better than the 85/1.8.

OK, thanks for that. I figured out where I went wrong. The 'useful'-ness of extension tubes is dependent on the focal length of the lens, not the MFD. MFD is totally irrelevant in this case. It makes perfect sense that you get twice the 'macro' out of using the tubes on the 50mm as opposed to the 100mm. I apologize for my misinformed post and thank you, sir, for setting me straight.

EDIT: Original post edited.


WARNING: I often dispense advice in fields I know little about!

  
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burb1972
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Jan 08, 2015 19:45 |  #17

sigma 70 2.8 macro, serious portrait lens


mike parker
gear list 5dc, tamron 19-35, tamron 28-75, 50mm 1.8 mark 1, 28-70 3.5 canon(x2), 100 f/2 canon, 70-300 usm is, helios 44-2, vpk lens put into a m42 cap attached to a bellows, 430 ex

  
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GeoKras1989
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Jan 08, 2015 19:56 |  #18
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burb1972 wrote in post #17373099 (external link)
sigma 70 2.8 macro, serious portrait lens

I never heard of this lens, but it reviews nicely. If anyone is interested, here is one review:
http://www.thephoblogr​apher.com …ex-dg-macro/#.VK8z5XuRbaI (external link)


WARNING: I often dispense advice in fields I know little about!

  
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mrfixitx
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Jan 08, 2015 20:00 as a reply to  @ burb1972's post |  #19

I would go with the Canon 60mm or the 100mm macro over the sigma due to the fact that the lens extends for focusing. Both the canon lenses are internal focusing. With the Sigma the barrel extending during focusing could end up blocking your light as you focus and the fact that it may move closer to a subject(insect etc..) may cause your subject to become startled and go elsewhere.


Dodging and burning are steps to take care of mistakes God made in establishing tonal relationships! - Ansel Adams (external link)
http://www.brandons-photography.com/ (external link)

  
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burb1972
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Jan 08, 2015 20:54 |  #20

the 60 is pretty hot on efs, but the sigma is redunkulus, its resolution exceeds the 100 L macro and i believe has the highest resolution of any macro from any vendor. It has great colors, bokeh The canon does have is. but yep the barrel extends on the 70. The 60 has pretty heavy vignetting, but otherwise nothing is wrong with it.


mike parker
gear list 5dc, tamron 19-35, tamron 28-75, 50mm 1.8 mark 1, 28-70 3.5 canon(x2), 100 f/2 canon, 70-300 usm is, helios 44-2, vpk lens put into a m42 cap attached to a bellows, 430 ex

  
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GeoKras1989
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Jan 08, 2015 21:27 |  #21
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burb1972 wrote in post #17373190 (external link)
the 60 is pretty hot on efs, but the sigma is redunkulus, its resolution exceeds the 100 L macro and i believe has the highest resolution of any macro from any vendor. It has great colors, bokeh The canon does have is. but yep the barrel extends on the 70. The 60 has pretty heavy vignetting, but otherwise nothing is wrong with it.

Yeah, the resolution on the Siggy is excellent (photozone.de). They rated it highly, only dinging it for slow, noisy focus. I take that with a grain of salt. You can't expect everything to have USM focus. And they did remark that it was dead-on accurate wrt AF.

I looked at their evaluation of the 60mm, also. I wouldn't call that vignetting heavy, but it is larger than I expected. I never noticed it because I use the lens profile feature for all my Canon lenses. The 60 wide open vignettes about 1.3 stops. My Rok 14 is about 3.5 stops. That is HEAVY VIGNETTING. But I love it, anyway.


WARNING: I often dispense advice in fields I know little about!

  
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FEChariot
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Jan 08, 2015 21:31 |  #22

GeoKras1989 wrote in post #17373062 (external link)
OK, thanks for that. I figured out where I went wrong. The 'useful'-ness of extension tubes is dependent on the focal length of the lens, not the MFD. MFD is totally irrelevant in this case. It makes perfect sense that you get twice the 'macro' out of using the tubes on the 50mm as opposed to the 100mm. I apologize for my misinformed post and thank you, sir, for setting me straight.

EDIT: Original post edited.

I think MFD still comes into play here. My 100L with the full set gives about 1.9x magnification with a physically longer lens and a longer FL. What I am not sure is if the physical length of the lens comes into play. I don't know enough about the physics here so maybe someone with that knowledge can chime in and educate me.

What I can do is put the tubes and lenses on and shoot a ruler to test actual results and I do have 4 lenses that can reach 85mm. Don't take these as gospel as I didn't exactly hit 85mm on the zooms, but here are the numbers:
55-250 = .77x
70-200/4 IS = .78x
24-105 = 1.22

The 24-105 was basically touching the ruler to the glass so although it gives the best number, it wasn't useable with the full set. If I used the 24-105 it would be with less than the full set.

Ironically the older non art 30/1.4 which has a pretty bad MFD gives .72x with 21mm of extension and 1.04x with 31mm but that is actually touching the front element.

Getting more back to the thread topic, the 50/1.8 and I am assuming the Canon and Yongo are copies, for basically $100, the Yongo with these $50 Fotodiox tubes gives that 1.3x and still has good working distance. That's a lot of bang for the buck.


Canon 7D/350D, Σ17-50/2.8 OS, 18-55IS, 24-105/4 L IS, Σ30/1.4 EX, 50/1.8, C50/1.4, 55-250IS, 60/2.8, 70-200/4 L IS, 85/1.8, 100/2.8 IS L, 135/2 L 580EX II, 430EX II * 2, 270EX II.

  
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mrfixitx
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Jan 08, 2015 21:33 as a reply to  @ GeoKras1989's post |  #23

With the 60mm being an EF-S lens the vignetting is going to be a lot more pronounced than an EF lens. That's true on basically all EF-s lenses compared to a similar EF lens.


Dodging and burning are steps to take care of mistakes God made in establishing tonal relationships! - Ansel Adams (external link)
http://www.brandons-photography.com/ (external link)

  
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burb1972
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Jan 08, 2015 23:10 |  #24

also keep in mind i dont know jack about macro, just never been too interested in macro, did some with my 1910ish vpk lens, probably the lowest resolution lens ever. I do pour over the lens samples and the best it seems to me are the sigma 70, 100 L 2.8, tamron 90, sigma 150.


mike parker
gear list 5dc, tamron 19-35, tamron 28-75, 50mm 1.8 mark 1, 28-70 3.5 canon(x2), 100 f/2 canon, 70-300 usm is, helios 44-2, vpk lens put into a m42 cap attached to a bellows, 430 ex

  
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Richgsr
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Jan 09, 2015 08:31 |  #25

Thanks for all the help, everyone!

I lucked out on a brand new (owner bought it for a product shoot, client decided they wanted medium format pics instead) 100 2.8L. He needed to get rid of it so I got it for $250 off retail so I'm pretty happy.

Took a few macro test shots and it looks amazing. I'm going to do more this weekend and see if I can test out how it does for portraiture.

Thanks for all the advice!
Rich


Rich | RJ23 Photography (external link) | Gear List

  
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Phoenixkh
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Jan 09, 2015 09:52 as a reply to  @ Richgsr's post |  #26

Congrats, Rich..... You'll love the 100L macro. I use it for a lot of different things, not just macro.


Kim (the male variety) Canon 1DX2 | 1D IV | 16-35 f/4 IS | 24-105 f/4 IS | 100L IS macro | 70-200mm f/2.8L IS II | 100-400Lii | 50 f/1.8 STM | Canon 1.4X III
RRS tripod and monopod | 580EXII | Cinch 1 & Loop 3 Special Edition | Editing Encouraged

  
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