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Go Back   Olympus UK E-System User Group > Cameras, lenses and system accessories > Lens focus > Converters, adapters and extension tubes

Converters, adapters and extension tubes All those lens accessories that get in between the lens and the camera.

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Old 1st July 2015
fotofundi fotofundi is offline
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75mm 2x converter?

Would anyone else wish Olympus would produce a 2x converter for the 75mm f1.8? (making a 150mm f3.6 lens)
The 40-150mm f2.8 is a great lens, but not what I had in mind when I bought into M4/3. Compact and lightweight it maybe compared to FF but it is still quite large and heavy in M4/3 terms.
An OM-D E-M1 body, 12-40mm f2.8 and the 40-150mm f2.8 and you are lugging over 2kg around.
The same body, 12-40mm f2.8, 75mm f1.8 and a 2x converter would weight around 1.5kg at a guess, be more compact and have the advantage of the wide aperture 75mm.

or alternativly, and my preference:

12mm f2, 20mm Panasonic f1.7, 45mm f1.8, 75mm f1.8 + converter and you have a line up of large aperture, high quality lenses for an all-up kit weight of around 1.5kg or less, and still able to cover 12-150mm.
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Old 1st July 2015
Daveart Daveart is offline
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Re: 75mm 2x converter?

Hi 73mm plus a x2 converter, may give you the reach of the 150mm end of the 40 150mm f2.8 but would not give you the same quality as the 40 150mm f2.8 because you will lose the quality of the lens through the softening of the x2. you can achieve the same quality with the x2 tele converter in camera with the extra stop,

I have tried this out it is quite good, but not any where near the 40 150mm f 2.8.

So horses for coarses if you want quality then there is no option.

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Old 1st July 2015
fotofundi fotofundi is offline
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Re: 75mm 2x converter?

A 2x converter designed specifically to work with the 75mm shouldn't loose too much quality. Obviously a generic 2x converter will.
By all accounts the 1.4x converter for the 40-150 is extremely good. Based on experience with other converters desgined for specific lenses I would anticipate only a very small reduction in quality. Of course the 75mm design may not lend itself to this possibility - the 40-150 and 1.4x were designed together from scratch (I think) - but if practical it would be nice!
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Old 2nd July 2015
byegad byegad is offline
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Re: 75mm 2x converter?

I just wish they made a universal TC1.4. I have the 4/3 1.4x converter and use it with all my 4/3 lenses including a couple of Samyang manual focus lenses and several legacy lenses. It works with them all. So they bring out a TC for the 40-150 Pro, and no other lens until they release the 300mm f4!
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Old 3rd July 2015
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Re: 75mm 2x converter?

Yes, a general purpose x1.4 and x2 for MFT would be good.
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Cameras: E-M5, E-PM2, OM40, OM4Ti
Lenses (M.Zuiko Digital): 7-14mm/F2.8, 12-40mm/F2.8, 40-150mm/F2.8+TC1.4x, 12-50mm/F3.5-6.3, 14-42mm/F3.5-5.6 EZ, M.ZD 40-150 F4-5.6 R, 75-300mm/F4.8-6.7 Mk1, 12mm/F2, 17mm/F1.8
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