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Teleconverts again

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  • Teleconverts again

    Sorry to be thick, but there is a degree of confusion about teleconverters for me anyway.

    I have the standard MFT 75-300mm lens, and might be looking to up its game perhaps by a teleconverter............

    But can only find converters for the 4/3rds lenses and the MFT pro lenses.

    Really cannot afford the pro lenses nor justify them.

    Are there any converters for the cattle class lenses?

    There would seem to be a gap in the market if not...
    Mark Johnson

    My Sailing Page

    My Flickr

  • #2
    Re: Teleconverts again

    This question comes up from time to time - and as far as I can remember nobody has ever come across a converter for MFT (except the one for the 40-150 and 300 pro lenses, which has an extra lug on the mount to make sure it won't fit on any others).

    Sorry ... John

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    • #3
      Re: Teleconverts again

      Another more serious reason why the MC14 only works with the 2 telephoto Pro lenses is that the front of this converter projects beyond it's mounting face and thus protrudes into the body of the lens.
      Hence, unless the lens' exit pupil is well set back from it's mounting face the MC14 would impact with the lens.

      Also in the case of the MFT 75-300 lens, adding a x1.4 TC would make it half a stop slower leading to difficulties in operation of the AF and taking the combo into the region of image softening due to diffraction. Hence it's unlikely to be a very marketable proposition.
      Chris

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      • #4

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        • #5
          Re: Teleconverts again

          Originally posted by Gwyver View Post
          Also in the case of the MFT 75-300 lens, adding a x1.4 TC would make it half a stop slower
          A 1.4x TC will make it a whole stop slower. A 2x TC will lose you 2 stops.

          Mark

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          • #6
            Re: Teleconverts again

            Originally posted by Mark_R2 View Post
            Some observations:
            I have the Sigma 50-500mm and use it with my EM-1. It is quite decently sharp up to 400mm. AF is a bit twitchy even with the EM-1 (even with its phase contrast AF support). I can C-AF racing cars with it but not especially reliably. The lens is huge and heavy. I made an extra long hood for it and that improves contrast a lot. Even so, it is best to keep the sun behind you.
            Mark
            A friend uses this lens on his Pentax - as Mark says it is HUGE and weighs half a ton. He does get good results with it.
            Steve
            My Flickr: https://flic.kr/ps/HRVVS

            "If everything seems to be going well, you have obviously overlooked something" - Steven Wright

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            • #7
              Re: Teleconverts again

              I forgot two other options (though neither are especially practical). The Olympus SHG 90-250mm and 300mm f2.8 lenses could also be coupled with the 4/3 1.4x TC or 2x TC and used with the 4/3 to micro-4/3 adapter. IIRC Olympus say that you shouldn't use the 4/3 TCs with the micro-4/3 adapter, though I don't know what would happen if you tried. Given the enormous cost of those old SHG lenses, even now, the question is probably moot.

              Mark

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              • #8
                Re: Teleconverts again

                I brought the 1.4 and 2x telecon for FT system and have always been disappointed with the results did many tests and came to the conclusion that an equivalent crop got the same result. Now I have mFT Pro lenses including the 40-150mm and 300mm I have resisted the hype to get the telecon. I have seen many excellent results on here with it but I still feel they are overated.

                I have the 50-500mm bigma also and the lost of light due to the smaller aperture is significant to the extent it is only useful on very very bright lighting.

                IMHO you are better off saving for a lens with native reach and as fast as you can afford.

                But as one old pro once told me the best telephoto is your 2 legs taking steps forwards using field craft and getting as close without spooking.
                John

                OM-D E-M1, 12-40 f2.8 Pro, Tamron 14-150mm f5.8, E5, E3, Zuiko 50-200mm SWD, Zuiko 12-60mm SWD, Zuiko ED 70-300mm f5.6, 50mmf2, Zuiko ED 9-18mm f5.6, Sigma 50-500mm f6.3, EC14, EC20, RM-1, VA-1

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                • #9
                  Re: Teleconverts again

                  Originally posted by MJ224 View Post
                  .....

                  Are there any converters for the cattle class lenses?

                  ......
                  For the cattle class, there is that digital X2 already built into your camera.
                  * Henry
                  * Location: Subang Jaya, Selangor
                  * Malaysia


                  All my garbage so far.

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                  • #10
                    Re: Teleconverts again

                    If your pocket is deep enough the best solution, IMHO, is the Panasonic 100-400. It's light for what it is and produces good results as you can see from my earlier posting about our visit to the Kruger in September. http://e-group.uk.net/forum/showthread.php?t=43144
                    David

                    EM1ii, EM10ii

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                    • #11
                      Re: Teleconverts again

                      Check out Tord's bird photos with a telescope on this forum.
                      Stuff from Cuba
                      More stuff from Cuba
                      It all started here

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                      • #12
                        Re: Teleconverts again

                        Originally posted by birdboy View Post
                        I brought the 1.4 and 2x telecon for FT system and have always been disappointed with the results did many tests and came to the conclusion that an equivalent crop got the same result. Now I have mFT Pro lenses including the 40-150mm and 300mm I have resisted the hype to get the telecon. I have seen many excellent results on here with it but I still feel they are overated.
                        I tend to disagree with this, I have no experience with the x2 but both the EC14 and MC14 produce great results and I can't tell the difference with or without on image quality.

                        All the best

                        Being left handed my brain sometimes works sdrawkcab

                        Andy

                        Lots of cameras and lenses.


                        My Flickr

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                        • #13
                          Re: Teleconverts again

                          Originally posted by blu-by-u View Post
                          For the cattle class, there is that digital X2 already built into your camera.
                          Yep, you can surprisingly good results using this.
                          All the best

                          Being left handed my brain sometimes works sdrawkcab

                          Andy

                          Lots of cameras and lenses.


                          My Flickr

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                          • #14
                            Re: Teleconverts again

                            Originally posted by andym View Post
                            I tend to disagree with this, I have no experience with the x2 but both the EC14 and MC14 produce great results and I can't tell the difference with or without on image quality.

                            I actually have all three, and can't tell the difference in image quality with the two 1.4 converters fitted; the 2x is certainly a bit softer on the 300mm F2.8, though of course atmospherics may come into it as the birds are further away.

                            These comments come with the following caveat; the same lens on its own, and with each individual converter need to have the AF adjust set for each combination to get the best out of it.
                            I've noticed that it can make quite a difference on the E-5, and there seems little rhyme or reason as to which way the adjustments need to be made for each combination.

                            I've just checked my E-M1 before posting and noticed that all the readings I so carefully entered have now vanished, so I guess they must have been lost when I did one of the software updates.

                            Looks like I need to bring my lens tester over to the new house and get everything set up again.



                            The wires are for an LED pointer to aid setting up.
                            Best Regards
                            Bill

                            The nearest I have to a home page.
                            http://www.flickr.com/photos/peak4/
                            They're Watching You!

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                            • #15
                              Re: Teleconverts again

                              You may well be surprised with the built in teleconverter. It does more than just enlarge to image that you see on the screen (a bit of in-camera processing goes on).
                              Dave

                              E-M1 Mk2, Pen F, HLD-9, 17, 25, 45, 60 macro, 12-40 Pro, 40-150 Pro, 12-50, 40-150, 75-300, MC-14, MMF-3 (all micro 4/3rds), 7-14 (4/3rds), 50, 135 (OM), GoPro Hero 3, Novo/Giottos/ Manfrotto supports. Lowepro, Tamrac, Manfrotto, and Billingham bags.

                              External Competition Secretary, Cwmbran PS & Welsh Photographic Federation Judge

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