F Mount Lens Means
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Bronica SQ Lenses to Nikon Lens Mount Adapter with tripod mount K&F Concept M31171 Lens Adapter
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Bronica SQ Lenses to Nikon Lens Mount Adapter with tripod mount K&F Concept M31171 Lens Adapter
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Related Faq
Q
What does the claim of "100% safety guarantee" really mean?
A
I guess that means they are safe to use the camera. 
Q
Where do I find my account number? Trying to add sharing and it's asking for my account number. Not giving the kids the password to my account
A
I think it means account email address. They might need to register/sign up as a new user so you can invite and add them using their email account. 
Q
Will this work on my sony a6000 and tokina minolta 100-300mm macro zoom?
A
Yes 
Q
Too loose/there is gap between lens and adapter ring
A
  1. If there is ever any more than a slight amount of rotational play, you may want to try tightening the lens mount adapter so it will hold the lens tighter to the mount. There are 3 flanges in the middle of the adapter (what the lens locks onto) that are split open slightly, this gap is what gives the tension that holds the lens tight to the body. Over time and with use these gaps decrease in size, no longer pulling the lens tight to the adapter, which allows the lens to move inside the mount more than it should.
  2. To tighten the fit, get a slim metal object (a #1.5 or #2.0 small flat eyeglass screwdriver is ideal) and insert it into the slit to open it up just a little bit (see images below, make sure to do it to all 3 evenly). The more you open the gap, the tighter the lens will be to the adapter; too much and the lens will have a hard time mounting so make sure to do it just a little bit at a time to all 3 flanges evenly, it doesn’t take much at all to get a tight fit.Note: please do not use too much strength, or the shrapnel will be damaged.
 
Q
What does this spotting telescope "10-30x50" mean?
A
This means that the magnification can be adjusted from 10 to 30 times, the objective lens is 50mm, a great telescope, light and durable. 
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