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Showcase Sony 100mm f2.8 stf g master

pjtan25

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Joined
Dec 26, 2011
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38
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ILCE-9    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/60s    ISO 6400
DSC00031.jpg
ILCE-9    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/200s    ISO 100
 

Antonio Correia

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Joined
Feb 2, 2019
Messages
494
Location
Setúbal, Portugal
I mounted the lens today for the first time and I was surprised why I couldn't impose f/2.8 working on A priority.
I have to go and read the manual about it as there are some more things to learn about it.
Just an interesting shot to start @5.6 !

i-kbHppR4-X2.jpg
ILCE-7M3    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/250s    ISO 200
 
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Antonio Correia

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Joined
Feb 2, 2019
Messages
494
Location
Setúbal, Portugal
I have a small problem which I am sure you guys, can help me in no time.

I bought a Sony A7 III along with a 100mm GM. As usual, I shoot A priority. Today, I mounted the lens for the first time and was very surprised when I could not adjust the aperture using the dial in the camera. The ring was at the A position on the lens but I couldn't go under f/5.6.

I have Googled a bit but couldn't find a way to turn this around.

Thank you !
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Antonio Correia

TalkEmount Veteran
Joined
Feb 2, 2019
Messages
494
Location
Setúbal, Portugal
i-qtxFfsk-X2.jpg
ILCE-7M3    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/250s    ISO 640

i-vtsHLXC-X2.jpg
ILCE-7M3    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/250s    ISO 500
 

Antonio Correia

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Joined
Feb 2, 2019
Messages
494
Location
Setúbal, Portugal
i-HGfmMMK-X2.jpg
ILCE-7M3    FE 100mm F2.8 STF GM OSS    100mm    f/6.3    1/250s    ISO 3200
 

fractal

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Joined
Jun 17, 2014
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So the aperture ring is actually a "T" ring. Interesting. Like a CINE lens.
The exif data reports it as f/5.6 but it's really F/2.8 with a T value of 5.6.
 

bdbits

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Joined
Sep 10, 2015
Messages
2,672
Real Name
Bob
That is interesting. This is the only non-cine lens I have ever heard of to do that. Sometimes I wonder if we shouldn't be using T-stops instead of f-stops, but there are probably reasons.
 

Antonio Correia

TalkEmount Veteran
Joined
Feb 2, 2019
Messages
494
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Setúbal, Portugal
i-fJ3cKHt-X2.jpg
ILCE-7M3    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/250s    ISO 6400
 

Antonio Correia

TalkEmount Veteran
Joined
Feb 2, 2019
Messages
494
Location
Setúbal, Portugal
Comments, comments, guys ! !
i-KLtX5pK-X4.jpg
ILCE-7M3    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/1000s    ISO 100


i-qfsH6Kz-X4.jpg
ILCE-7M3    FE 100mm F2.8 STF GM OSS    100mm    f/5.6    1/250s    ISO 100
 

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