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Focus adjustment for 2 Sigma 150mm Macros

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  • #16
    Re: Focus adjustment for 2 Sigma 150mm Macros

    Originally posted by Greytop View Post
    Maybe you tried a bad sample zuiko-holic but I wouldn't tarnish all Sigma lenses with the same brush.
    Maybe, but again?

    I can upload samples of a Sigma 30mm f/1.4 that were hoplessly soft.

    It's what I said, it seems that NONE of ths Sigma lenses I've tried was a "good" copy.

    I buy Olympus gear and Honda cars for their reliability and quality. I don't gamble with my money.

    Sigma is known for its "bad" copies. These were not single incidents.

    Originally posted by Greytop View Post
    To be honest I have rarely used mine wide open because I use it for macro (it's intended purpose)
    Yes, sigma 150mm is good at close-ups and Macro as I mentioned before.

    Originally posted by Greytop View Post
    but just for my own curiosity I've just taken some long distance shots from my back door of features in our garden and beyond. The house is about 120+ metres away, the swing is about 50 metres away for reference.
    These are all Jpegs straight from the camera, resized for the web, there are also a few other examples you can view at the same location.

    I don't think these are at all bad for f/2.8
    After breaking through the technology barrier,
    you run into the barrier of accepted wisdom.
    -Yoshihisa Maitani

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    • #17
      Re: Focus adjustment for 2 Sigma 150mm Macros

      Originally posted by zuiko-holic View Post
      Maybe, but again?

      I can upload samples of a Sigma 30mm f/1.4 that were hoplessly soft.

      It's what I said, it seems that NONE of ths Sigma lenses I've tried was a "good" copy.

      I buy Olympus gear and Honda cars for their reliability and quality. I don't gamble with my money.

      Sigma is known for its "bad" copies. These were not single incidents.



      Yes, sigma 150mm is good at close-ups and Macro as I mentioned before.



      These samples are not bad for f/2.8, but I don't cosinder them particularly good either for a lens that costs €695 (here in Greece at least) and weighs a ton.
      I can get similar performance by my OM Zuiko 135mm f/2.8 wide open (ok, maybe with some purple fringing) that cost me €85.
      Zuiko-holic - I have to ask you, would you use a hammer to screw a SCREW in ?
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      [I].
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      I Lurve Walking in our Glorious Countryside; Photography;
      Riding Ducati Motorbikes; Reading & Cooking ! ...


      http://www.flickr.com/photos/photomagicf1_chevvy/sets/

      the ONE photo album

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      • #18
        Re: Focus adjustment for 2 Sigma 150mm Macros

        Originally posted by Chevvyf1 View Post
        Zuiko-holic - I have to ask you, would you use a hammer to screw a SCREW in ?
        You mean if I would use a tele-macro lens for tele work?
        Yes, I probably would (as I did). It is a telephoto lens after all and f/2.8 is very useful in many situations (low light or if shallow DoF is desirable) if it is indeed usable. Who tells me not to?
        After breaking through the technology barrier,
        you run into the barrier of accepted wisdom.
        -Yoshihisa Maitani

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        • #19
          Re: Focus adjustment for 2 Sigma 150mm Macros

          Originally posted by zuiko-holic View Post
          You mean if I would use a tele-macro lens for tele work?
          Yes, I probably would (as I did). It is a telephoto lens after all and f/2.8 is very useful in many situations (low light or if shallow DoF is desirable) if it is indeed usable. Who tells me not to?
          Oh! Dear !

          Well, I bought my Sigma 150 Macro lens to use as a macro ! and this morning, getting some more awesome macro shots of Bees, for the first time I used it at a longer fl and got this of my roof pitch and the lichen ! Given what your looking at is a lossy jpeg, I think most will agree this is good detail. ooh and it was handheld, just its so heavy ! for me



          THIS shot is 100% crop, but phenominal detail of the lichen, given the lens, low light (the sun had gone in ) ... so perhaps there is something wrong with your Sigma lens, or maybe your camera settings ?

          I was at f10 and 1/250 (the bee settings for Macro )

          and this is my first rubbish shot using BIGMA at the far end ... given my lack of knowledge of the lens/settings and the fl at full reach 500 its not bad, there is some clarity in feathers !

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          [I].
          .
          I Lurve Walking in our Glorious Countryside; Photography;
          Riding Ducati Motorbikes; Reading & Cooking ! ...


          http://www.flickr.com/photos/photomagicf1_chevvy/sets/

          the ONE photo album

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          • #20
            Re: Focus adjustment for 2 Sigma 150mm Macros

            Try finding the Tamron 135mm f/2.5, they probably sell for peanuts these days. A third of a stop faster than the OMZ and I seem to recall it focuses quite a bit closer.

            The only Sigma I've tried that was half decent was the short lived 800mm f/5.6 and that was the UK importers demo copy so it should have been good.
            It's the image that's important, not the tools used to make it.

            David M's Photoblog

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            • #21
              Re: Focus adjustment for 2 Sigma 150mm Macros

              Originally posted by David M View Post
              Try finding the Tamron 135mm f/2.5, they probably sell for peanuts these days. A third of a stop faster than the OMZ and I seem to recall it focuses quite a bit closer.
              Thanks for the head's up, but I've stopped looking for other lenses unless they're Zuikos. I had collected many lenses over the years (Yashinon, Sigma, Quantaray, Sigma etc) but I've decided to restrick my OM collection to just Zuiko lenses.

              Tamron had indded produced some very nice lenses.

              Originally posted by David M View Post
              The only Sigma I've tried that was half decent was the short lived 800mm f/5.6 and that was the UK importers demo copy so it should have been good.
              Don't be so sure. The Sigma 30mm f/1.4 I've tested was the importers demo and I couldn't take a single really sharp picture with it regardless the aperture setting. It was AF of course so that was to be expected.


              Originally posted by Chevvyf1 View Post
              Oh! Dear !

              Well, I bought my Sigma 150 Macro lens to use as a macro !
              Of course you did! I'm not gonna tell you how to use your lens.
              And of course you cannot tell me how to use my lens too...

              For example, I cannot use my Zuiko 50mm f/2 MACRO for portraits because it is a "Macro" lens?

              Or maybe it is forbidden to use my OM Zuiko Auto-MACRO 50mm f/3.5 on my OM-4 for street photography because it is a "Macro" lens?

              Or perhaps I shouldn't use my Zuiko 70-300 for close-ups or Macro because it is a Zoom-Telephoto and it isn't marketed as a Macro lens?

              Originally posted by Chevvyf1 View Post
              THIS shot is 100% crop, but phenominal detail of the lichen, given the lens, low light (the sun had gone in ) ... so perhaps there is something wrong with your Sigma lens, or maybe your camera settings ?
              I have the feeling that people do not read my posts.
              For the third time in this thread I will write: "Maybe the Sigma I tested had a focus issue, AGAIN?!?".

              I also bet that most haven't checked the pictures I have uploaded in my previous post. The settings were the same for both Zuiko 50-200 and Sigma 150. Also, the EXIFs are available. Have you at least spent some seconds to check them out before posting some of your -admitedly good but low resolutions samples-? (you would have seen that the shots were taken indoors).

              By the way, the topic of this thread is about the focus adjustment of the Sigma 150mm lens. Do you find it logical for someone who doesn't own an E-620, E-30 or E-5 (which offer focus adjustment) to invest on expensive Sigma lenses when the Quality Control of Sigma is horrible (and noone can deny that no matter how much he is fond of Sigma, regardless of the camera system he/she uses) and most of them may (and will) need a focus adjustment?

              If you want us both to continue flaming the thread with a contradistinction about Sigma lenses, I can also upload samples of the Sigma 30mm f/1.4 I also tested and -AGAIN- had focusing issues if it isn't just a very mediocre lens, especially for the price.
              After breaking through the technology barrier,
              you run into the barrier of accepted wisdom.
              -Yoshihisa Maitani

              Comment


              • #22
                Re: Focus adjustment for 2 Sigma 150mm Macros

                Originally posted by CallaWolf View Post
                What a difference

                On my E5, one dials in at +5, the other at +20. I was surprised at the gap. Varying QC by Sigma?
                My Sigma 150 (as mentioned earlier) works nice on my E30, but now I have the EC14, the combination needed -18 (for distant shots) to be set on the E30.
                Ross
                I fiddle with violins (when I'm not fiddling with a camera).
                Flickr: https://www.flickr.com/photos/ross-the-fiddler/
                Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
                Lenses: M.ZD7-14mm f2.8 PRO Lens, M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens, MC-14, MC-20, M.ZD45mm f1.8, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
                Flashes: FL36R X2, FL50R, FL50.
                Software: Capture One Pro 10 (& Olympus Viewer 3).

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                • #23
                  Re: Focus adjustment for 2 Sigma 150mm Macros

                  Originally posted by Ross the fiddler View Post
                  My Sigma 150 (as mentioned earlier) works nice on my E30, but now I have the EC14, the combination needed -18 (for distant shots) to be set on the E30.
                  Ross....bit puzzled by your addendum "(for distant shots)" - wouldn't your -18 setting also apply to macro shots were you to use the 150/EC14 combo there as well? Or is there some way of telling the AF adjust (as an example) "use -18 if the shot is distant, and 0 if the shot is close" ?
                  Ceri Vale
                  (www.vale-images.co.uk)

                  (Latest Work)

                  Equipment - Olympus stuff - 'nuff said

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                  • #24
                    Re: Focus adjustment for 2 Sigma 150mm Macros

                    Originally posted by CallaWolf View Post
                    Ross....bit puzzled by your addendum "(for distant shots)" - wouldn't your -18 setting also apply to macro shots were you to use the 150/EC14 combo there as well? Or is there some way of telling the AF adjust (as an example) "use -18 if the shot is distant, and 0 if the shot is close" ?
                    I've only tried the combination so far on long distance & yes, it should be the same for close too (hopefully). Life has just been a bit upsetting & stressful this last fortnight so haven't had too much opportunity to try a lot.
                    Ross
                    I fiddle with violins (when I'm not fiddling with a camera).
                    Flickr: https://www.flickr.com/photos/ross-the-fiddler/
                    Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
                    Lenses: M.ZD7-14mm f2.8 PRO Lens, M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens, MC-14, MC-20, M.ZD45mm f1.8, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
                    Flashes: FL36R X2, FL50R, FL50.
                    Software: Capture One Pro 10 (& Olympus Viewer 3).

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                    • #25
                      Re: Focus adjustment for 2 Sigma 150mm Macros

                      Originally posted by Ross the fiddler View Post
                      Life has just been a bit upsetting & stressful this last fortnight so haven't had too much opportunity to try a lot.
                      Really sorry to hear that matey
                      Ceri Vale
                      (www.vale-images.co.uk)

                      (Latest Work)

                      Equipment - Olympus stuff - 'nuff said

                      Comment


                      • #26
                        Re: Focus adjustment for 2 Sigma 150mm Macros

                        Originally posted by Ross the fiddler View Post
                        ... Life has just been a bit upsetting & stressful this last fortnight so haven't had too much opportunity to try a lot.
                        Ross I am sorry to hear this and hope things get a lot better very soon
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                        [I].
                        .
                        I Lurve Walking in our Glorious Countryside; Photography;
                        Riding Ducati Motorbikes; Reading & Cooking ! ...


                        http://www.flickr.com/photos/photomagicf1_chevvy/sets/

                        the ONE photo album

                        Comment


                        • #27
                          Re: Focus adjustment for 2 Sigma 150mm Macros

                          Thanks for the concern, but it was my Mum that enjoyed her 90th birthday party & died quickly a week later, sad to lose but happy to have her this long. The stress was getting a daughter back from Canada on holidays & another from Melbourne. Now it's just the logistics with the property & family (a brother still lives in the house with his wife).
                          Ross
                          I fiddle with violins (when I'm not fiddling with a camera).
                          Flickr: https://www.flickr.com/photos/ross-the-fiddler/
                          Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
                          Lenses: M.ZD7-14mm f2.8 PRO Lens, M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens, MC-14, MC-20, M.ZD45mm f1.8, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
                          Flashes: FL36R X2, FL50R, FL50.
                          Software: Capture One Pro 10 (& Olympus Viewer 3).

                          Comment


                          • #28
                            Re: Focus adjustment for 2 Sigma 150mm Macros

                            Ross I dont envy you ! My mother died two weeks before our holiday and it was and is stressful! But that she had a good age and a full life makes it easier.
                            .
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                            [I].
                            .
                            I Lurve Walking in our Glorious Countryside; Photography;
                            Riding Ducati Motorbikes; Reading & Cooking ! ...


                            http://www.flickr.com/photos/photomagicf1_chevvy/sets/

                            the ONE photo album

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