Sigma Photography

Sigma 100-300 f4 Question.



Hi

My wife is branching out into DSLR and have aquired the lens mentioned. She hopes to use this with a D80 but the thing thats confusing is the diaphragm control f stop dial.

The instructions are not that clear and mention having to set the f stop manually on the lens in certain circumstances like shutter priority etc.

I just figured that the f stop inputted into the camera would overide this and I did not realise that this would not be done automatically.

Thanks.


I think you're being lead up the garden path.
If the lens has a manual aperture ring then set it to its highest f-stop and flick the switch to lock it there and everything should be done from within the camera to set f-stops.

Hope I'm helping.
Jaff


Hi Jaff

Whom by my better half or the lens?

Understand but no lock for aperture ring. Thanks.


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