Best Lens Filter For Tamron 70-300
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Related Faq
Q
How is the multiple calculated?
A
Equipped with eyepieces: H6mm, H20mm The multiples are: 300/6=50 times, 300/20=15 times. If you choose a 3 times Ballov lens, the magnification is 50X3=150 times, 15X3=45 times; plus a 1.5 times orthographic lens, the imaging is a positive image, and the magnifications are: 50X1.5=75 times, 15X1. 5=22.5 times. Namely: minimum magnification: 15 times, maximum magnification: 150 times. 
Q
can you use a pinch lens cap over this filter?
A
The Answer is Yes. You can use a pinch cap over most filters. ALL my lenses have a filter of some sort on them. I use to use a lot of "traditional" lens caps on all my old Nikkor lenses but putting them on and taking them off became a giant PITA, so I got a Pinch Cap as a test. I then converted ALL the lenses to Pinch Caps. Hope this helps. 
Q
Will this hold Nikon D750 with 150-600mm zoom?
A
I don’t think so. I night this to use on my Nikon D3100 with a Tamron 70-300. Neither are very heavy but this head would not keep my camera still. It crept down no matter how tight I made it. I think your camera and lens are heavier so I would go with a better name brand. 
Q
What is the difference between ND 2-32 and ND 8-128? And does the 67mm works for tamron 28-75 for sony?
A
If your tamron 28-75 lens is 67mm, the two filters both work for your lens. Please verify your camera's lens thread size before purchase (usually marked somewhere on the lens barrel or printed underneath the lens cap).The number is always preceded by a "ø" (diameter) symbol the two lens difference is the stops. 
Q
Does this fit a Tamron 77 wide angle lense?
A
you said (Tamron 77 wide angle lense?) the lens info can't be right! do you have the full name of the lens. 
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