Bronica Lenses And It History

Executive Summaries from many articles by Helson Xu

Bronica History

Bronica Lenses

Bronica or Zenza Bronica was a Japanese brand of professional medium format roll-film cameras, including rangefinder and single-lens reflex models. Bronica cameras first appeared in 1958, when the company’s founder, Zenzaburo Yoshino, introduced a camera of his own design, the Bronica Z rollfilm camera, at the Philadelphia Camera Show. The name “Zenza Bronica” is reputedly derived from Zenzaburo Brownie Camera. The Bronica Z and successor Bronicas, using large-coverage, high-quality Nikkor lenses, became instant successes.

Bronica later introduced lenses of its own manufacture with its later camera designs. Zenza Bronica Ltd. was eventually acquired by the lens manufacturer Tamron. Zenzaburo Yoshino died in 1988.

Tamron discontinued the brand’s single-lens reflex models (SQ, ETR and GS) in October 2004. Bronica’s last model, the RF645 rangefinder camera, was discontinued in October 2005.

Bronicas were workhorse cameras for wedding and portrait photographers for many years. Secondhand Bronica cameras are still widely used by professional and serious amateur photographers, in no small part due to superior image quality of 6×4.5, 6×6 and 6x7cm roll film over smaller film and digital sensor formats.

Bronica SLR cameras employed a modular design: The major components of the camera lens, body, film back and viewfinder were separate and interchangeable.

Bronica Zenzanon PS – Telephoto lens – 250 mm – f/5.6

Technical Details

• Brand Name: Tamron
• Lens Type: Telephoto lens
• Minimum focal length: 250 millimeters
• Minimum Focal Range: 10 feet
• Maximum Aperture Range: F/5.6

Product Description

This lens is suited for portraiture and nature photography including wildlife. When this lens is shot wide open it provides a sharp subject against a blurred background.This product features fully automatic diaphragm; Shutter Seiko.

Here my short review about Bronica Lenses, and also read my other guides about cameras on Canon Camera Manual Books, Canon 55 250mm F 4 5.6 EF S IS Lens and Minolta Camera Repair.

Canon 55 250mm F 4 5.6 EF S IS Lens

Executives summaries from many articles by Helson Xu

Every one will not doubt about canon quality, from it’s camera until it’s lens. Here I preview two of it best of Canon 55 250mm F 4 5.6 EF S IS Lens

Canon EF-S 55-250mm f/4.0-5.6 IS Telephoto Zoom Lens + Tiffen 58mm UV Protection Filter + Accessory Kit

Canon 55 250mm F 4 5.6 EF S IS

Technical Details

• Canon EF-S 55-250mm f/4.0-5.6 IS Telephoto Zoom Lens for Canon Digital SLR Cameras
• Tiffen 58mm UV Protection Filter
• Cap Keeper Front Lens Cap Leash
• Lens Pen Cleaning Tool – Professional Dust Blower
• Lens Care & Cleaning Kit – Advanced Micro Fiber Cleaning Cloth

Product Description

Incorporating Canon’s Optical Image Stabilizer technology, this Canon 55-250mm telephoto zoom lens captures long distance, low-light shots far better than many comparable lenses, helping you photograph the far-off action of athletes or zoom in for an intimate portrait with a blurred background. The high-zoom-ratio lens is equivalent to a focal length of 88-400mm in the 35mm format (when used on Canon EOS cameras compatible with EF-S lenses). More significantly, the image stabilizer effect creates an equivalent shutter speed of roughly four stops faster than the same size lens without an image stabilizer. In other words, if the slowest shutter speed you can hold a 250mm lens steadily is normally 1/250th of a second, this Canon lens will let you hand-hold shutter speeds as slow as 1/15th of a second.

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The lens also boasts a UD-glass lens element to correct chromatic aberration to create excellent image quality throughout the zoom range. Delivering an excellent performance at an affordable price for all photographers, the 55-250mm lens carries a one-year warranty plus Accessory Kit: Tiffen 58mm UV Protection Filter; Protects lenses from dust, moisture, scratches, and other damage. This filter can be kept on the camera at all times. Provides basic reduction of ultraviolet light and Helps eliminate bluish cast in images. – Cap Keeper Front Lens Cap Leash – Lens Pen Cleaning Tool – Professional Dust Blower – Lens Care & Cleaning Kit – Advanced Micro Fiber Cleaning Cloth.

Janco Lens Hood for Canon EF 75-300mm f/4.0-5.6 USM II, II USM, III USM Lenses and Canon EF-S 55-250mm IS Lens as ET-60

Canon 55 250mm F 4 5.6 EF S IS Lens

Technical Details

• Replacement for Canon ET-60 Lens Hood for Canon EF 75-300mm f/4.0-5.6 USM II, II USM, III USM Lenses and Canon EF-S 55-250mm IS Lens
• Designed to prevent unwanted stray light from entering the lens.
• Ensures no problems with vignetting or motor functions.
• Added benefit of extra protection from accidental impact.
• Superior quality, packed with Janco original paper box

Product Description

A lens hood provides multiple functions: First, it shades the lens from stray light, improving your contrast and image quality. Second, in inclement weather, it can assist in keeping moisture or wind-blown debris off the lens; Third, it protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles. This Janco LH-60T lens hood is designed to replace the original Canon ET-60 is Compatible with the following Canon lenses: EF 75-300mm f4.0-5.6 USM II, II USM, III USM EF-S 55-250mm IS Lens.

Hope this information can be useful for you. Read also my other articles about Canon Digital Wide Angle Lens , Westcott Umbrella Collapsible , Tips Before Buy Used Camera and Pentax Adapter K .

Canon Digital Wide Angle Lens

By : Helson Su

Canon Digital Camera Wide Angle Lens

Photography has come a long way. One of the more popular camera brands is Canon. It has diversified its product offerings but continues to focus in their series of digital cameras, both point and shoot and SLRs. There are various factors that need to be considered when buying a camera, particularly the Single Lens Reflex cameras. While most consumers would prefer a camera with high megapixels, enthusiasts would be busy arguing which lenses to use. A case in point would be the Canon Wide Angle Lens.

Aside from the price and form factor, the type of lens is an important criterion to consider. There are quality lenses and there are those that appear to be imitations. The Canon Wide Angle Lens is perhaps one of the more popular choices among aficionados. This is because of the quality and the additional features that help deliver stunning photographs.

The Canon Wide Angle Lens has patented technology that allows rapid focusing. This is ideal when taking a photo of subjects in motion or even in events that need to be captured in succession. It covers a wider spectrum which makes it an ideal choice for landscape and portrait shots.

It is important to be aware of the features of the lenses that you intend to purchase. Though they may look the same, they can differ in so many ways that will ultimately affect your photos. While the Canon Wide Angle Lens is a popular choice, it is also important to first determine what you are really looking for in a camera lens. You also have to consider the price because lenses don’t come cheap. But if you are well-informed, you can find lenses at reasonable prices, whether online or in shops.

Here I review one of canon digital wide angle lens,

Canon EF-S 15-85mm f/3.5-5.6 IS USM UD Wide Angle Zoom Lens for Canon Digital SLR Cameras

Technical Details

• 15-85mm lens with f3.5-f.5.6 aperture; for use with APS-C cameras
• 35mm equivalent to 24-136mm focal length range
• Dedicated image stabilization
• Lens construction of 17 elements in 12 groups
• Compatible with 72mm filters

Lens Specifications

• Focal Length & Maximum Aperture: 15 – 85mm 1:3.5-5.6
• Lens Construction: 17 elements in 12 groups
• UD Glass: 1
• Diagonal Angle of View: 84 degrees 30′ to 18 degrees 25′
• Focus System: Inner focusing system with USM
• Closest Focusing Distance: 1.15 ft. / 0.35m
• Filter Size: 72mm
• Max. Diameter x Length: 3.2 x 3.4 in./81.6 x 87.5mm
• Weight (lens only): 20.3 oz./575g

Product Description

EF-S 15-85mm f/3.5-5.6 IS USM extra wide-angle to telephoto zoom lens with 35mm equivalent of 24-136mm * compatible with Canon APS-C format digital SLR cameras * Image Stabilization allows in-focus shots with longer exposure times (up to four stops slower shutter speed) * ring-type Ultrasonic Motor for fast, silent autofocus * available full-time manual focusing (automatically overrides autofocus) * minimum focus distance: approximately 14 inches * lens is 3-7/8″ long, 3-1/4″ in diameter *

Hope this information can help you in choosing canon digital wide angle lens .