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

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Old 6th November 2016
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The best 2x Tele(side)converter

I am thinking of getting a 2X teleconverter to use specifically with my Olympus 40-150mm f4-5.6 lens and Pen-F. I am leaning more towards a high quality Teleside converter with a 58mm thread that keeps image aberration and distortion to a minimum. Any suggestions would be welcome, thanks.

I prefer to avoid proper teleconverters. My experience with them has been unsatisfactory and in any case, AFAIK there is no Teleconverter specific to MFT lenses. The Olympus EC-20, apart from being expensive, needs an MFT adapter, doesn't it?
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Old 6th November 2016
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Re: The best 2x Tele(side)converter

I have a Canon TC-DC58N that I no longer use, as I have the TC for the PRO 40-150 f/2.8

It's 1.75x rather than 2x

https://www.amazon.co.uk/Canon-TC-DC.../dp/B00007LI9D

If interested, make me an offer...

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Old 6th November 2016
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Re: The best 2x Tele(side)converter

The EC-20 is "big" 4/3rds fit, not micro-4/3, so it will only fit on a 4/3 lens and you would need the MFT adapter to fit it to an MFT body. There is no way (*) you could fit an MFT lens onto the front of the EC-20. I'm guessing that your 40-150 is MFT, not 4/3, otherwise you would already have the adapter.

(*) It might be theoretically possible to make such an adapter, but probably cheaper and better to just buy a new lens - even if it is the 300mm f/4!

John
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Re: The best 2x Tele(side)converter

I checked. There are plenty of unbranded and dubious branded 2X teleside converters on e-bay in the 10 to 35 bracket. But I suspect that their quality is limited.

Siocore make very good quality teleside converters and they are still available but expensive. A "standard" 2x converter is around 65 while a "HD-Pro" 1.8X converter is around 120. Rather more than I was hoping to spend. Also, the latter is rather large and probably heavier than the Olympus 40-150mm f4-5.6 lens. I do not mind the money but am worried that the additional weight might damage the main lens' plastic mount. Is that likely over time?
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Old 6th November 2016
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Re: The best 2x Tele(side)converter

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Originally Posted by Loup Garou View Post
... I am worried that the additional weight might damage the main lens' plastic mount. Is that likely over time?
Something of an unknown, but if used with a tripod on the body, then that possibility exists.

However I tend to use a "Bean Bag" (Old socks stuffed in a pouch) that can be placed on any convenient solid surface and the camera placed on that. I often find it far more stable than a tripod on a windy day.

The Canon one is a bit lighter than the lens itself and when fitted look very similar to having the hood attached.

I'm prepared to let it go for 25 inc P&P
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Old 6th November 2016
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Re: The best 2x Tele(side)converter

If it is the R lens then it is very, very good in the f8 range. For my money I would get the Olympus 75-300mm used as this would be optically better than converting the R with some hooky filter. The lens is also reasonably portable like the 40-150.
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Re: The best 2x Tele(side)converter

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... For my money I would get the Olympus 75-300mm used as this would be optically better than converting the R with some hooky filter. The lens is also reasonably portable like the 40-150.
I wouldn't describe the Canon TC as "hooky", but completely agree that IQ of the 75-300 will be better than the 40-150 with a TC.
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Re: The best 2x Tele(side)converter

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I wouldn't describe the Canon TC as "hooky", but completely agree that IQ of the 75-300 will be better than the 40-150 with a TC.
I was referring to the eBay ones Loup was looking at!
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Re: The best 2x Tele(side)converter

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I completely agree that IQ of the 75-300 will be better than the 40-150 with a TC.
I already have a Panasonic Vario G 100-300mm f4-5.6 but that is part of my OMD EM5 II kit and in a separate bag. I know it sounds odd, but I have always had 2 separate camera kits and usually take one or the other with me depending on where I am going. Right now I own the OMD EM5 II and Pen-F with several lenses; the one and only "shared" lens is the Olympus 60mm f2.8 Macro. The Olympus 40-150mm f4-5.6 is part of the Pen-F kit.

While on the subject of Teleside converters, why to they specify "for Canon", "for Olympus" etc? Since Teleside (front end) converters are screwed-on and have no electronic link, why does anything apart from the thread size matter?
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Re: The best 2x Tele(side)converter

For much the same reason that UV filters have "digital" printed in big letters on the box. They hope that you will buy one even if you already have one that doesn't

John
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Old 7th November 2016
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Talking Re: The best 2x Tele(side)converter

Quote:
Originally Posted by Loup Garou View Post
While on the subject of Teleside converters, why to they specify "for Canon", "for Olympus" etc?
Cross contamination fears...
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Old 7th November 2016
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Re: The best 2x Tele(side)converter

Rather than buying a tele convertor, why not just use the built in tele convertor as I have always found it to work reasonably well. Free too!
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Old 8th November 2016
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Re: The best 2x Tele(side)converter

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Originally Posted by benvendetta View Post
Rather than buying a tele convertor, why not just use the built in tele convertor as I have always found it to work reasonably well. Free too!
Good point. I have this built-in feeling that digital zooming adversely affects the imge quality. But then a teleside converter does the same but being an optical device, the quality may be less affected by comparison. I don't know.
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Re: The best 2x Tele(side)converter

The built in converter uses some clever processing to achieve better quality than if you just enlarged a part of the image in post processing. I have been impressed with results although it only works with jpegs, leaving the raw file (if you have the camera to record in raw) intact.
Clearly the better the glass, the better the result.
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Re: The best 2x Tele(side)converter

I'll let my one go for 22.50 inc P&P

If you don't get on with it you can sell it on eBay and make a profit
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