Canon 58mm lens filter - Low pass fir filter coefficients - Butterworth filter theory.
Canon 58mm UV Protector Filter
The Canon 58mm UV filter is a multi-purpose, fine-weather filter that is designed to optimize your photography experience. Used by many photographers to protect the front element of their lens from abrasions, dust, and moisture.UV filters, absorb ultraviolet rays that often make outdoor photographs hazy and indistinct.75% (11)
They should be constantly fitted to a lens to provide improved clarity and color balance, as well as to provide additional protection to your lens. UV filters are perfect for digital photography and traditional 35mm SLR applications, including black and white photography.
They also have a very subtle warming effect, which can be useful to counter the "cool" colors you sometimes get in bright sun or in shade.
¦ Fits 58mm lenses
¦ Includes Filter case
¦ Absorbs ultraviolet rays to produce crisp, clear photographs
¦ Ideal for protecting your valuable lens from scratches and dust
¦ Natural light pictures will be sharper, crisper and better balanced
Canon EF 70-300mm f/4-5.6 IS USM
Telephoto Zoom (From Canon) The EF 70-300mm f/4-5.6 IS USM telephoto zoom lens has been developed to meet the high-performance standards that today's photographers demand. Improved Image Stabilizer Technology provides up to three stops of "shake" correction, and the "Mode 2" option stabilizes images while panning with a moving subject. Compared to the original Canon EF 75-300mm IS zoom lens, this telephoto lens has faster auto-focus, and overall the lens is lighter and has a smaller diameter than the original. The zoom ring can be locked at the 70mm position, making this powerful lens easy to transport, too. Focal Length & Maximum Aperture: 70-300mm f/4-5.6 Lens Construction: 15 elements in 10 groups Diagonal Angle of View: 34° - 8° 15' (with full-frame camera) Focus Adjustment: Front-focusing method with helicoid ring drive Closest Focusing Distance: 4.9 ft./1.5m Zoom System: 6-group helical zoom (rotational angle: 84°) Filter Size: 58mm Max. Diameter x Length, Weight: 3.0 in. x 5.6 in., 22.2 oz. / 76.5mm x 142.8mm, 630g (lens only) IMG_0349bMy Equipment - Summer 2009
Lenses (behind, from left to right): Canon EF-S 60mm f/2.8 Macro USM, Hoya Protector Pro 52mm filter Canon EF 70-300mm f/4-5.6 IS USM, Hoya Protector Pro 58mm filter Sigma 150-500mm f/5-6.3 AF APO DG OS HSM Canon EF 70-200mm f/4L IS USM, Hoya Protector Pro 76mm filter Canon EF-S 17-55mm f/2.8 IS USM, Hoya Protector Pro 77mm filter Sigma 30mm f/1.4 EX DC HSM, Hoya Protector Pro 62mm filter Cameras (middle, from left to right): NB-2LH batteries (2x) Canon EOS 350D, Canon BG-E3 grip Canon EP-EX15 (eyepiece extender) Canon EOS 50D BP-511A batteries (3x) Storage (front, from the left): Kingston CF Ultimate 2GB Kingston CF Elite Pro 4GB SanDisk CF ExtremeIII 8GB CompactDrive PD70X with 60GB HDD SanDisk CF ExtremeIII 16GB (2x) Out of the picture: Hood for each lens LowePro MiniTrekker AW backpack Tripod Manfrotto 190XPROB black Tripod bag Manfrotto MBAG80P (80cm, padded) Tripod heads Manfrotto 486RC2 (ball), Manfrotto 804RC2 (3-way) Monopod and head Manfrotto 776YB, Manfrotto 234RC Point&shoot Panasonic Lumix DMC-LX3 (used to take the picture)
This Item Includes: 1. UV Lens Filter 2. Circular Polarizing Filter 3. Flourescent Filter 4. Filter Pouch 5. Nwv Direct Microfiber Cleaning Cloth. Lens filters are translucent pieces of glass placed in front of a camera lens to alter or adjust the light entering the camera and more importantly to protect the camera lens. Lens filters improve photographs by giving photographers control over light and allowing them to emphasize the features of a scene that they consider most important.This filter kit is a combination of the three essential filters no photographer should be without.UV--Film and a digital CCD are more sensitive to UV light than our eyes are. This often shows up in images shot from high altitudes and long distances especially over water. This filter will remove the UV light and more importantly protect your lens from moisture, scratches, and damage. Circular Polarizer--provides color and contrast enhancement. Reflected light often shows up as a whitish glare that washes out color in an image. A polarizing filter will correct this problem creating deep blue skies. It also removes glare from non-metallic surfaces such as windows and water.FLD--provides color correction when shooting under fluorescent lighting. It will remove the greenish tint from the image, providing pleasing skin tones and true to life color renditions. Warranty:10 year manufacturer warranty. Made in JapanRelated topics:
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