Focus Sport F-1 Quick Sling Strap Overview
Features:
World's Fastest Camera Strap. Makes photography more fun.
Extra large sponge on shoulder.
It is a universal sling, you can use it 99% of cameras.
Improved New Shoulder Pad Material for extra comfort during use.
Take pride, it is a carry speed, best developed sling for camera with perfect alignment.
The safest and reliable.
The fast strap F-1 will keep your equipment safe and stable even in the most stressful situations.
Push the camera up the strap to grab the perfect shot.
Suitable For:
Most DSLR/SLR camreas / Mini DV Camcorder / DC with standard 1/4″ tripod
Canon EOS 7D 20D 30D 40D 50D 60D 350D 400D 450D 500D 550D 600D 650D 1000D 1100D 5D Mark II 5D Mark III Digital SLR Camera.
Canon Powershot SX40 HS Digital Camera.
Canon Digital Rebel T4i T3i T3 T2i XT Xti XS Xsi T1i Digital SLR Camera.
Nikon D40 D40X D60 D80 D90 D300 D300s D700 D3000 D5000 D3100 D5000 D5100 D7000 Digital SLR Camera.
Specification: Color: black Outer Fabric: Soft woven nylon, nylon hardware, neoprene Internal Material : Soft Neoprene Padding With Anti-slip Weave Trigger Snap Hook Metal metrial: zinc alloy 1/4″ Connecting Adapter Metal metrial: Stainless steel Maximum circumference: 59.06inch/150cm Minimum circumference: 15.75inch/40cm Sponge Shoulder Pad size: 15.75 x 3.66 x 0.35inch/40 x 9.3 x 0.9cm(L x W x H) Net Weight of Sling Strap: 182g (0.40lbs / 912ct) Weight of Fasten Connector : 15g (0.03lbs / 76ct)
Package Contains
1 x Focus F-1 Camera Quick Strap.

Medium Format
Medium format refers to the size of your roll of film (or if you’re talking digital, it’s the size of the camera sensor). It really just means that you are shooting on a bigger piece of film than you do with a 35mm camera. The increased size of medium format film means a much larger negative. This will give you finer details and less grain.
Choosing your Right Medium Format Camera
Twin Lens Reflex (TLRS)
TLRs use two objective lens of the same focal length. The photographic objective lens is the one that is used to take the picture. The other lens, called the view lens, is connected to the viewfinder. Most TLRs are fixed focal length, and the more expensive models may incorporate a rudimentary room function. Most TLRs use a leaf shutter system, resulting in high speeds, quiet operation and low shutter vibration. There are also close-up, wide angle and telephoto adapters for TLRs.
Some popular TLRS cameras are: Yashica MAT-124G, Rolleiflex 2.8F, Minolta Autocord and Mamiya C330


Rangefinder
Rangefinder cameras are medium format cameras with a range finder. This negates the waistline, viewing that most TLRs carry. They are also much smaller than TLRs, and allow for easier point and shoot photographs. They tend to have limited focusing ranges, and do not have lenses larger than 180mm or 200mm. Rangefinders are quieter and easier to focus in dim light. They are mostly fixed lens models, but higher range models also provide for interchangeability.
Some popular rangefinder cameras are: Fujica G690, Mamiya 6/7, Bronica RF645, Norita 66 and Pentax 67
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