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

Started Mar 27, 2013 | Discussions thread
texinwien
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Re: The D5200 EXIFs from I-R are BS…so what is Nex-7 as well?
In reply to LTZ470, Apr 1, 2013

LTZ470 wrote:

Anders W wrote:

LTZ470 wrote:

Anders W wrote:

LTZ470 wrote:

Anders W wrote:

LTZ470 wrote:

I didn't say anything about opinion or facts…lol…thats your control kicking into overtime...

I said "my" findings…you are welcome to "your" findings as well...

Metering is always relevant for me…thats a fact…

Judging by your exchange with Mjankor, it seems that metering is indeed always relevant for you, which means your logic is in error.

If the E-M5 and the NEX 7 are shot side by side, as they were by you in the post Mjankor pointed to here

http://www.dpreview.com/forums/post/51178592

with exposure and ISO settings such that the difference in image brightness should be no bigger than 1/3 EV, and the actual image difference in image brigthness matches that expectation, then those who are able to reason logically can draw the conclusion that the two cameras follow the SOS ISO standard with respect to image brightness to the same extent. No information on metering is required to draw that conclusion.

I love it when you guys think everyone should think exactly like you do…shooting a bird at 30ft metering makes ALL the difference in the world…of course you guys are experts and know everything there is to know about how other folks shoot…lol...

Would love to see your photos of your birding shots…Most folks use Spot Metering for birding…I do too..and yes it is very relevant for me...

Like I stated before I don't take none of what you or man jour as the gospel…I have a 70mm Sigma Macro on the way with adapters…we shall see soon the difference, then I'll present "my" findings…

Thank you for confirming in such an obvious way that I was right about the point I was making: That your logic is in error.

I was pointing out that metering is irrelevant with regard to the conclusions we can draw from the E-M5-versus-NEX 7 example that Mjankor pointed to. You respond by saying you find metering important in actual shooting. Now what has that got to do with the price of fish?

http://en.wikipedia.org/wiki/What's_that_got_to_do_with_the...%3

Well like I stated before the 70mm Sigma will be here in a couple of days and I'll set them up and shoot side x side and see what the 70mm Sigma has to do with it...that seems to be the key word in the shutter speeds on Image Resource...so I'll know once and for all...hope you and Manjour are right to be honest, just doesn't seem that way from my own experiences...

No. That's not the key point (or word). The key point is that we can check whether cameras behave according to ISO standards by more effective means. And the E-M5 does.

I'll test it against the Nex-7 both with Sigma 70mm and see which has the fastest shutter with same settings...thats the key point to "me"...sorry but it's my nickel and I'll test the way I want when I want and how I want and then report "my" findings...

They sell Sigma 70mm Macros all day everyday if you want to buy your own and do your own testing...

Metering is very important to me because I use my cameras at set meterings...Spot or Centerweighted I don't shoot Manual I shoot "A" for fastest possible shutter speeds with lowest possible ISO...

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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 don't get it. What is the  purpose of buying the sigma? It only has a bug in conjunction with some Nikon DSLRs at some apertures. If you want to confirm the bug, you'll have to test the lens with one of the Nikon DSLRs with which the lens has a problem.

Here's IR's statement on the matter as quoted on their D800 review, linked for your convenience: *Note: These shots were captured with a Sigma 70mm f/2.8 macro lens, one of the sharpest lenses we've ever tested on SLRgear.com. We use Sigma 70mm lenses in most of our studio test shots because they are so sharp and are available for most major platforms. For some reason, though, on some (but not all) Nikon bodies, the Sigma causes the camera's exposure system to overexpose by somewhere between one third of a stop and a full stop depending on the aperture. The D800 is one such body (as was the D4, D7000, D300S and D90), as the exposure compensation settings actually used in the images above are lower than normal for this shot. Accordingly, the comments regarding exposure compensation required have been adjusted to match results we achieved with a Nikkor lens. Other than this exposure shift, the Sigma 70mm performs very well on Nikon bodies, so we continue to use it as our "reference" lens, due to its excellent optical qualities.

Looking forward to the results of your tests!

tex

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