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Thread: Will my DOF be greater ??

  1. #11

    Default Re: Will my DOF be greater ??

    Just a follow-up to the above - and not that this is an exceptional shot by any means, but it illustrates the versatility of a 100 mm macro lens. Taken this afternoon, while looking for bees and spring flowers...


    Col
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    originator and do not necessarily reflect those of the reader.

  2. #12
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    Default Re: Will my DOF be greater ??

    Many thanks Chaps good thread and information link.

    Best. JP

  3. #13
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    Default Re: Will my DOF be greater ??

    Quote Originally Posted by Cap'n Fishy View Post
    Just a follow-up to the above - and not that this is an exceptional shot by any means, but it illustrates the versatility of a 100 mm macro lens. Taken this afternoon, while looking for bees and spring flowers...



    Col
    Nice one , my 2 main options are Olympus M.Zuiko 60mm f/2.8 ED Macro ( 120mm eq ) or Leica DG Macro-Elmarit 45mm f/2.8 ( 90mm eq ) But not sure as yet which it will be ? .....
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  4. #14

    Default Re: Will my DOF be greater ??

    Quote Originally Posted by sweenytodd View Post
    Nice one , my 2 main options are Olympus M.Zuiko 60mm f/2.8 ED Macro ( 120mm eq ) or Leica DG Macro-Elmarit 45mm f/2.8 ( 90mm eq ) But not sure as yet which it will be ? .....
    Bear in mind you have other macro options, Danny...

    Budget macro options for interchangeable lens camera owners

    Col
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    originator and do not necessarily reflect those of the reader.

  5. #15
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    Default Re: Will my DOF be greater ??

    Quote Originally Posted by sweenytodd View Post
    Nice one , my 2 main options are Olympus M.Zuiko 60mm f/2.8 ED Macro ( 120mm eq ) or Leica DG Macro-Elmarit 45mm f/2.8 ( 90mm eq ) But not sure as yet which it will be ? .....
    Col seems to have covered the necessaries with regard to general macro and DoF.

    I'd go for the Zuiko on the basis that it will give you a greater working distance between you and the subject. Most macro lenses are optically well-corrected and there's not much difference between the two lenses you're interested in. Better lenses do exist but they're into four figures.

    Depth of field (DoF) for the 60mm or 45mm (virtual 120mm and 90mm) will be the same as if they were used on a full frame camera, i.e., a better DoF than for a true 120mm or 90mm on a full frame sensor. The difference in DoF between the 45mm and 60mm will be minimal and I think the greater working distance of the 60mm is more valuable if photographing flighty subjects.

    As Col says, there are alternatives, often cheaper, if you don't mind losing autofocus (which is of little value in macro anyway) and do manual stop down of the lens.

    Flash will allow you to stop down (say to f9, f11 [the sweet spots in terms of resolution], or f16) and still freeze the action but not sure where you stand on that. Having said that, you may find that the 60mm/45mm will deliver decent DoF without the need to go that additional route and your camera may perform well at higher ISO's allowing you to use smaller apertures at a high shutter speed anyway.

    Cheers,
    BF.

  6. #16

    Default Re: Will my DOF be greater ??

    Another example of using a macro lens with no extra kit and no extra trickery (such as focus-stacking )...

    All the flies in this post were shot with a 100 mm macro lens (1:1) close to minimum focusing distance of 1 ft from the sensor, so close to 1:1 magnification - a small amount of cropping required to frame the final image. All shot at f22, to maximise DoF, while staying within the recommended minimum for the particular lens, wrt loss of IQ to diffraction.

    Goats, etc...

    All I did was position the flies to keep as much of the fly equidistant to the sensor, then focus on the head and/or hook point. That makes the bulk of the fly acceptably sharp. Any drop-off towards the tail-end doesn't detract too much.

    Col
    Please note that any views expressed in this post may be those of the
    originator and do not necessarily reflect those of the reader.

  7. #17
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    Default Re: Will my DOF be greater ??

    Some good articles on M43 macro options, and reviews of both the lenses you mentioned, at Gary Ayton's site:
    [url=http://www.ayton.id.au/wiki/doku.php?id=photo:microfourthirdsmacro[/url]

    Olympus in particular is pretty good for the close up stuff as their origin was in microscopy (and actually makes most of their revenue from medical imaging).
    Last edited by ps3737; 12-05-2018 at 03:41 AM.

  8. #18
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    Default Re: Will my DOF be greater ??

    Thanks folks for the added content to this thread , I only noticed it now
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