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100-300 vs. 50-200+1.4TC: surprised!

Started Jun 1, 2014 | Discussions thread
luisflorit
OP luisflorit Veteran Member • Posts: 8,514
Re: 100-300 vs. 50-200+1.4TC: surprised!

X_Holger wrote:

I don't think that the findings of "luisflorit" are correct.

There is something wrong with his set-up.

I did a short test with the 50-200 SWD + EC-14 compared to the Olympus 75-300 at 300mm.

Here is a 100% crop at F6.3 / F6.7

both manually focussed with 14x magnification

Sturdy tripod, no IS, 75-300 with Manfrotto 293 Telephoto Lens Support, AntiShock 10 sec, cable release

First 50-200 SWD + EC-14 F6.3 (officially 283mm)

Second the Olympus mFT 75-300 F6.7 at 300mm

I think the difference is easy to see ......

And I doubt it would be any different with the Panasonic 100-300

We shoot at different apertures, it could be that. At more than F5.6 you get diffraction phenomena with a 2x crop sensor. Not sure how you processed the RAW files, nor which RAW processors you used. And, after all, we have different copies of the lenses.

Cheers,

L.

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Olympus E-M1 II Olympus 12-40mm F2.8 Pro Olympus M.Zuiko 300mm F4 IS Pro Venus Laowa 7.5mm F2 MFT Olympus E-M1 +3 more
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