Birds 197 mm instead of 200 mm (FE 70-200mm F2.8 GM OSS II)

[-ST-]

Hi, All.

I just got my FE 70-200mm F2.8 GM OSS II, and easily half of the shots I intend to take at 200 mm appear to be at 197 mm in the metadata (and in the image review in the camera)

Should I go back and exchange it for another lens?
Metadata
ILCE-7M4 Sony FE 70-200mm F2.8 GM OSS II (SEL70200GM2) ISO 100 1/100 s f/3.2 197 mm

• ILCE-7M4
• Sony FE 70-200mm F2.8 GM OSS II (SEL70200GM2)
• 197.0 mm
• ƒ/3.2
• 1/100 sec
• ISO 100

 

[Deleted Member 5045]

I'd be working out dollars divided by 130, being millimetres of travel. Work out how much per millimetre then send Sony an invoice for the 3mm they've stolen from you... ✔

 

[-ST-]

I should have asked, "Is this a defective lens?"

 

[evacguy]

Hi, All.

I just got my FE 70-200mm F2.8 GM OSS II, and easily half of the shots I intend to take at 200 mm appear to be at 197 mm in the metadata (and in the image review in the camera)

Should I go back and exchange it for another lens?
Metadata
ILCE-7M4 Sony FE 70-200mm F2.8 GM OSS II (SEL70200GM2) ISO 100 1/100 s f/3.2 197 mmView attachment 30708

Can't say I've ever noticed that. But on some occassions I haven't ensured that the lens is fully zoomed out i.e., there is still a little way to go on the zoom ring. In my case, that has always been my fault i.e., user error. I've never had it zoomed all the way out and got something less than 200 mm.

 

[MrFotoFool]

3mm is nothing. I wouldn't worry about it. Reportedly the Sigma 120-300 f2.8 (at least the first version) only goes to around 260 or 270mm instead of 300mm. Now that IS a big difference, but 197 instead of 200? Don't give it another thought.

 

[Unframed Dave]

Only a guess, but do thermodynamics have any effect? I guess it's quite cold up there at the moment.

 

[Unframed Dave]

Wait...are you suggesting the cold causes...shrinkage?

Quite a lot, I tend not to join in with the boxing day swim at Cromer for this very reason.

 

[-ST-]

Thanks to all for your thoughts and suggestions.

I'll be more conscientious about making sure the zoom ring is fully turned to the 200 end before pressing the shutter button and see if that helps.

 

[Rick Dahms]

Something like that would drive me crazy. Honestly, if it doesn't magically fix itself in the next shoot with you really concentrating on pegging out the zoom, I'd take it back. Before the nicknames start.