li Perfect for prefessional school or university use li 10 + 2-digit scientific ... more
calculator with 2-line display and 169 functions li 1 independent memory and 26 store and recall memories li Coordinate conversion li Random number li 12 level of par...
Postage & Packaging: £4.50 Availability: Usually dispatched within 1-2 business days...
The F-720i is a 10 + 2-digit handheld scientific calculator with 2-line display and ... more
Formula entry logicFeatures-10 + 2-digit, Large 2-line display and Direct algebraic operating system. -1 independent memory and 26 store $ recall memories. -One variabl...
Postage & Packaging: £4.87 Availability: Usually dispatched within 1-2 business days...
li Perfect for prefessional school or university use li 10 + 2-digit scientific ... more
calculator with 2-line display and 169 functions li 1 independent memory and 26 store and recall memories li Coordinate conversion li Random number li 12 level of par...
Postage & Packaging: free Super Saver Delivery Availability: Usually dispatched within 24 hours...
Advantages: Range. Optical Quality. Size. Weight. Price. Disadvantages: Lens hood not supplied with lens.
Having owned and used my Canon EF-S 10-22mm f/3.5-f/4.5 USM zoom lens for around 15 to 18 months I feel that it is in many ways, quite an exceptional lens. Effectively covering the versatile full-frame equivalent 16-35mm zoom lens, it is a valuable addition to anyone's kit.
Being an EF-S lens (the 'S' standing for 'Short' back-focus), it is designed for use ONLY with cameras having APS-C size sensors. Don't attempt to fit one to a full-frame DSLR or 35mm SLR camera. Such lenses have reduced image circles and produce vignetting on full-frame or 35mm cameras. Furthermore, the rear lens element could get hit by the reflex mirror, causing serious damage.
With a maximum aperture of f/3.5 at the widest end and f/4.5 at the more moderate end of the zoom range, the lens is not 'fast' by any stretch of the imagination. However ...
Advantages: Good Value Product Disadvantages: Nothing so far
This is a good quality product that offers good value for money in the very short term. Although as with most products of this type, the value will deteriorate over time and should be able to get a cheaper version next year. It's a great device with plenty of features that I would highly recommend. This really is a wonderful piece of kit that should go well with many accessories because it really looks good. After using this product for a few months I have not so far come up against any reliability issues but only time will tell. I therefore would recommend the product. However, always think carefully as to whether you actually really need something before you buy it. We buy so many things nowadays that we don't really need.
Important Technical Details
Mounting Type: Canon EF
Lens Aperture: F/4.0
Focal Length: 17 mm - 40 mm ...
This is a good quality product that offers good value for money in the very short term. Although as with most products of this type, the value will deteriorate over time and should be able to get a cheaper version next year. It's a great device with plenty of features that I would highly recommend. This really is a wonderful piece of kit that should go well with many accessories because it really looks good. After using this product for a few months I have not so far come up against any reliability issues but only time will tell. I therefore would recommend the product. However, always think carefully as to whether you actually really need something before you buy it. We buy so many things nowadays that we don't really need.
Focal Length: 70 mm - 300 mm
Lens Aperture: F/4.5-5.6
Optical Zoom: 4.3 x
Magnification: 0.19
Image ...
