- Dec 15, 2009
why so damn slow? , look at the optical element on the panasonic 20 1.7 it looks like a penny sitting on a hockey puck ..........1.4 or 1.5 would have impressed me and had the added benefit of making the lens look less silly
as for the upcoming 14 , i agree with Brian , it makes no sense with a 14mm 3.5 already available on the kit zoom , now if they they had the guts and the brains to make a 14 f2
or a 12 2.5 then i might be interested, imagine the buzz and tremendous respect panny would garner on the photo web sites and in the micro four third owner community if they could be so bold and brave .... so of course they wont do it .
these modern lenses, especially from olympus, feel like toys to me , strike that!.... many toys Ive come across seem much sturdier, i cant wait for a decent prime to be made for
the micro four thirds system , one that is made sturdily of metal, is reasonably fast, and has a focus action that does not feel like a mayonnaise jar spinning against a disk of felt
spinning endlessly "by wire " as if broken , completely detached spiritually and tactilely
for the had that moves it
voigtlander , where are you!
ep1 , gf 1 and lots of manual glass
really? I must be mistaken then (or confused with the Pana) as I thought that they would not AF with every regular 4/3 lens (for instance the ZUIKO DIGITAL ED 50-200mm F2.8-3.5 SWD)Not sure I'm following you here, the Oly Pens will CDAF with every one of Oly's 4/3rds lenses... as well as every other standard 4/3rds lens?
But ckw, we all really need f/1.4 or faster in order that we can still use our Kodachrome II in cloudy weather.It's exactly what I'm waiting for - a faster lens would be nicer, but since I'm used to shooting with f4 Canon zooms, 2.8 seems "fast" to me - if 2.8 instead of 1.7 is necessary to keep the size down (and price reasonable), then for me it is an acceptable compromise.
Yes, mention "bokeh" in Idiocracy, and you'd be accused of "fag talk".You talk a bokeh around here in Philly, and the guys will change yer name....
Ding-dong!Why can't I just find a fast, MF wide angle lens for MFT?
but it will after vignetting removed be no wider than your 14mm is (as I have one of these)Ding-dong!
It will need an adapter and a little surgery, and it will still vignette. Japan Exposures will handle the whole business for you, and adapter plus surgery plus postage will cost quite a bit more than a fleabay adapter, but the grand total is sure to cost a lot less than what Panasonic would charge you.
Oh, and it's not a pancake. But it's pretty small.
well, it seems that after some research on my part that your information is accurate enough (there apparently are some which will only MF but in the main AF-S will be available).Not sure I'm following you here, the Oly Pens will CDAF with every one of Oly's 4/3rds lenses... as well as every other standard 4/3rds lens?
From this imaging-resource page:I have a strong suspicion that the AF system somehow limits this. I don't know if its CDAF (which I suspect it is not) but that in an effort to get fast responses and key in with their electronics there is some limit imposed (perhaps related to the refresh rate to which the system seems to be tied to).
so it seems to me this is going to be a major restriction for the system, despite its alluring features, there are quite a few restrictions on its implementation (as was the main point of what I was saying). People who wish to take advantage of these nice features are perhaps never going to see lenses other than a few zooms or lenses which can make use of moving inner elements. The use existing AF lenses is going to be a challenge for the system, perhaps one which completely prevents using lenses where the entire element moves (as in say a typical 50mm lens), the motors just won't be fast enough and snappy enough to do it....
.. It turns out that not all lenses are able to move their elements quickly enough to work with the G series' contrast-detect autofocus. Normal phase-detect AF systems are fairly forgiving of focusing speed, because the correct focal distance setting is determined independently of the lens elements' motion: The camera looks at the subject, calculates the correct focal distance, commands the lens to move, and then snaps the shot once the lens reports back that it's moved to the correct setting.
With contrast-detect autofocus, though, the lens has to move multiple times, and must come to rest before the camera can take each "look" at the subject, to determine whether the focus is better or worse than it was at the previous focal setting. In order for the overall focus cycle to be performed quickly, the lens needs to be able to shift focal settings very quickly, multiple times per second. This is a demanding requirement, and not all lenses are up to the challenge.
So, while some current Four Thirds lenses will work just fine on the new Micro Four Thirds system, with full support for AF operation, other lenses will be reduced to "guided manual" focus
Like the Panasonic G1, the GH1 uses a very fast contrast-detect autofocus system, capable of adjusting focus sixty times/second.
this part is of course wrong and should have been "but its interesting just how few of Oly's 4/3 lenses will AF with Panasonic G series cameras"dunno ... but its interesting just how few of Oly's 4/3 lenses will AF with EP-x series cameras
Do you know which 4/3rds standard lens will only MF? I'm guessing it could be a Sigma with limited 4/3rds compatibility... but would be interesting to hear of any specific lens which won't play.Brian
well, it seems that after some research on my part that your information is accurate enough (there apparently are some which will only MF but in the main AF-S will be available).