50-200 swd or not for mFT

Started 5 months ago | Discussions thread
acahaya
Contributing MemberPosts: 977
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Re: Have to disagree with both points here
In reply to Pikme, 5 months ago

Pikme wrote:

Big Ga wrote:

I have a feeling that the SWD wasn't actually that much faster!

I have both versions and cannot understand the comments that say the AF speed is the same or close. It would be like saying the AF speed of original m4/3 lenses is the same as recent MSC lenses. The SWD is MUCH faster and a different type of focus. There is no 'final adjustment' like with the original, just a one shot bang. The only explanation I have for those who think the AF speed is similar is if they only use the lens with tele converter - that does bring the SWD lens focus speed back down to non- SWD speed.

i second that. the swd s also faster and more reliable when used with C-AF on the E-3 and E-5. I did a lot of testing before i decided to keep the SWD version.

AF speed with EC-14 on the E-5 is still good enough for BIF but i am faster with MF if i use the lens with the EC-20. The non SWD is even slower. The fastest AF (still not usable in C-AF on FT) with the EC-20 is the Sigma 70-200/2.8.

At least with my copies the SWD doesn't hunt as often on FT, even with older models like the E-510.


I have never seen a test posted that showed any worthwhile IQ difference, and I've seen a number of tests that show the two lenses to give identical output.

I never bothered upgrading from my original one to the SWD.

Remember the lens hood is MUCH bigger on the SWD one, and can be a PITA to fit into a bag even reversed.

The two lenses are the same with respect to sharpness, but the SWD lens has rounded aperture blades. I can believe that many people do not notice the difference, but it was a very pleasant difference for me. It removes or lessens some of the previous harshness and 'digital' look of the OOF areas. It is a subtle difference, agreed, but still is very noticeable to me.

True, if you look very hard, the bg is rendered little a bit betterbut this is still the most noticable weakness of this lens. The aperture is a bit better on the non SWD version, i.e. the SWD drops to 3.5 at a much shorter focal range.

The hood is a bit larger, but the difference is exaggerated (I've never had any problems fitting it into the same bags I've always used). The SWD hood has a door that permits adjustment of filters and polarizers.

The hood is a bit bulky but it does its job. I also didn't have to buy a new bag.

Jim, your question is a good one and I wish I knew the answer. Right now, I don't like using the SWD lenses on my EM5 because there is a lot of slamming around and I worry that it is damaging to the lenses (I have no idea if it is actually damaging, it just feels like it might be). That is the only reason I've kept my non SWD lens around. If the new camera works with SWD ok, then I will get rid of the original version.

Same here, the only SDW lens that i am halfway comfortable using on mFT is the 14-35. I know the slamming and use the 50-200 SWD with MF only (if at all).

Btw the sigma 70-200/2.8 does not AF at all on mFt, it takes about a minute to confirm focus and then it is way off.

I do hope very much that Oly will come up with a camera wirh sensor pdaf, adapter or whatever that allows us to use SWD lenses with full AF speed on mFT but i am not sure if and when they will deliver. Even though the 50-200 SWD is a bargain right now it still costs a lot of money. I'd only buy it if i was OK using it with MF only.

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Edited 5 months ago by acahaya
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