Re: Panasonic 20mm 1.7 Mark I or Mark II?
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EarthQuake wrote:
danielhep wrote:
I'm looking for a fast lens for my Olympus E-M10 Mk 1, and these Panasonic 20mms look perfect for me.
I don't have a big budget, hence the lens options. I'm looking around at used lenses, and it looks like the mark 2 is about $50-$100 more than its predecessor. What advantages does it have, if any? Should I spend the extra cash? Also, these lenses will work fine on my Olympus camera, right?
Thanks.
No difference between I and II other than cosmetics. This lens is fully compatible with Olympus M43 camera bodies. Get the MK1 if it's cheaper.
Saying that, unless the ~40mm equiv FOV or small size are the main reasons you're looking at this lens, I would go with one of the 25mm lenses instead, because the 20/1.7 hunts quite a bit when focusing in low light on Olympus bodies, and causes banding on bodies with the 16MP sony sensor, which is most of of the current gen olys.
I'm late to the party, as is often the case. Being the one who's review is linked below, I can say definitively that there are very noticeable differences between the Lumix 20mm f/1.7 MkI and MkII lenses beyond cosmetics.
Contrast and flare control are vastly improved on the MkII for one, and a slight performance bump regarding CA as well. The center sharpness might just edge toward the v2 lens, although the v1 is very sharp there too. In the corners, it is the one place I found the v1 to outperform the v2, but again, by a remarkably small increment. I would consider both versions to be very, very sharp.
The AF speed "issue" in my opinion is hugely overstated, and really the only problems I've ever had with this lens is in very low contrast situations, which I also see the Oly 75mm, the Oly 45mm and just about every other native m4/3 lens struggle. One area I feel the 20mm has outperformed the O45 and 75's is that often times, I find that (again, in very low contrast/dark conditions) the Oly lenses will rack back and forth and never achieve focus while the 20mm may take 3 seconds, but gets there. This is quite possibly down to a wider field of view, but a situational setup where we can state that one lens or another is a "slow AF" lens. See the linked video showing the AF speed in the article to see what I mean.
Oly body vs Pana body, well, I've shot these lenses on both, and while there is certainly a more harmonious mating with the Pana bodies, it isn't a huge difference, outside the banding issue that became very prevalent on the first of the Sony sensors in the EM5 generation. That was a bit messy, and really the only thing I'd say would deter me if I shot at or above ISO 3200+ with this lens a lot.
If you can find a v1 in good shape for $100 or so less than a v2, go for it, but I'd make sure it was in good working order. Otherwise, I do think that the going rate for the v2 is well worth it, and in my opinion, is one of the budget gems that this system has to offer (along with the Lumix 14/2.5 and the Oly 45/1.8) making for a great, compact, lightweight setup.
Here's my review article, originally linked below if interested.
https://tysonrobichaudphotography.wordpress.com/2013/12/19/panasonic-lumix-2020-vision-v-1-vs-v-2/