Question about Panasonic Lumix G Vario 100-300mm F4-5.6 OIS

Started Mar 27, 2013 | Discussions thread
Martin.au
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Re: Question about Panasonic Lumix G Vario 100-300mm F4-5.6 OIS
In reply to LTZ470, Mar 28, 2013

LTZ470 wrote:

Mjankor wrote:

Mjankor wrote:

LTZ470 wrote:

The 75-300 Oly is much slower than 100-300, take my word for it…I have owned and shot both extensively…the 75-300 cannot focus many times when the 100-300 can…the extra light the 100-300 allows is worth it in AF speed and Shutter Speed and it is still a challenge at times with EM5 as they fudged the ISO and the Shutter Speeds are slower than other cameras at equal ISO values, so for Birding and Nature you WILL need the fastest glass you can get on the EM5...

Moving Subject + EM5 + f/6.3 = Blurred photo...

YMMV...

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Too many wrong facts.

Basically, everything about the OM-D fudging ISO is wrong. THE OM-D uses the same shutter speeds (within 1/3 of a stop) as other cameras for any particular camera ISO value, as expected.

For more info, check out the rather long debate here:

http://www.dpreview.com/forums/post/51112064

As for focussing, I suspect that's wrong too. Most reports say the 75-300 is faster at focussing.

Lol…you think I said this because I haven't tested them side X side…MOST folks that say the 75-300 is faster have never owned the 100-300 much less used the two side x side…I have photos to prove my point do they their's?

Same tripod, same camera same distance...75-100 could not acquire focus...100-300 AF'd time and time again without any problems...75-300 really nice sized sweet lens, sharp and godd contrast...BUT cannot match 100-300 for AF or Speed...you WILL miss many shots with 75-300 that the 100-300 would have captured...f/5.6 vs f/6.7 the f/5.6 trumps f/6.7 everytime except in the brightest light...moving subject + 75-300 at f/6.7 + slow shutter speed EM5 = blurred photo...thats all i got to say about that

As far as fudging ISO…lol…again I challenge you (or anyone else) to look at Image Resouces and compare the Shutter Speeds at same ISO's on various models…lets say from Canon 60D, Nex-7, OMD, Panasonic GH2…and come back here and give us the findings...

That way you won't have to take my word for it…savvy?

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FlickR Photostream:
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Mr Ichiro Kitao, I support the call to upgrade the FZ50.
I will not only buy one but two no questions asked...

I presume your 100-300 won't focus in that situation at f4.8?

1) Why do you assume that IR's images have exactly the same lighting conditions? DPR certainly have stated that for their studio scenes that they do not guarantee the lighting. You are supposed to use their calibrated ISO tests to determine the accuracy of the camera's ISO.

2) This is your claim. You post the values from IR for whichever cameras you choose.

3)

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