Ultra Cool Gadgets

Want to bring small things into full-sized view? Turn to the Canon EF 50mm f/2.5 compact macro lens, which can uncover detail that would otherwise be impossible to detect by the naked eye. Ideal for shooting extremely minute subjects such as insects or the petals of a small flower, the lens offers a nine-element design and a floating optical system that focuses down from infinity to one-half life size (0.5x). Despite these macro optics, however, the lens also functions beautifully as a general-purpose normal lens. And should you want to focus down to life size (1:1), you can add an optional Life Size Converter EF to increase the working distance–a valuable feature in close-up shooting. Other details include a 46-degree diagonal angle of view, a 0.8-foot close focusing distance, and a one-year warranty.

Technical Details :
* 50mm
* Macro
* F/2.5
* Filter Thread 52mm

Specifications :
* Focal length: 50mm
* Maximum aperture: f/2.5
* Lens construction: 9 elements in 8 groups
* Diagonal angle of view: 46 degrees
* Focus adjustment: Front group linear extension system with AFD
* Closest focusing distance: 0.8 feet
* Filter size: 52mm
* Dimensions: 2.7 inches in diameter and 2.5 inches long
* Weight: 9.9 ounces

Customer Feedback :
Great in low light, and agree also, the bokeh is sweet. I do alot of bee chasing and manage some great macros with bees in flight with this one. All hand held. Can also take great indoor shots without flash, with a steady hand.I chose it also because it was one of the least expensive high rated canon 50mm’s.
It goes well with another inexpensive canon lens, the 55-200mm ef f4.5-5.6 II, which also does well outdoors, including macro.

The fastest 135mm telephoto lens in its class, the Canon EF 135mm f/2L lens is ideal for indoor sports photography and portraits with background blur. Although the lens offers complete automatic focusing capabilities thanks to its Ultra Sonic Motor (USM), you can still take advantage of its manual focus function even when the camera is in AF mode. The lens also offers two UD glass elements that help minimize chromatic aberrations, giving your images outstanding sharpness and color. Other details include a 3-foot close focusing distance, an 18-degree diagonal angle of view, and a 72mm filter size. The lens–which is compatible with EF 1.4x II and 2x II extenders–carries a one-year warranty.

Technical Details :
* EF mount; telephoto lens.
* Ultra-low Dispersion glass with Fluorite elements; inner focusing ring.
* 135mm focal length f/2 maximum aperture Ring USM motor.
* Comes with Leather bag & lens hood.

Specifications :
* Focal length: 135mm
* Maximum aperture: f/2.0
* Lens construction: 10 elements in 8 groups
* Angle of view: 18 degrees
* Closest focusing distance: 3 feet
* Focus adjustment: Rear focusing system with USM
* Mount: Canon
* Filter size: 72mm
* Dimensions: 3.2 inches in diameter and 4.4 inches long
* Weight: 1.7 pounds
* Warranty: 1 year

Pros:
- Very sharp at f2 and super sharp start from f2.5.
- Very fast lens with f/2
- Very good bokeh (background blurring).
- Overall extremely good picture quality with good contrast/color.
- Smaller size, less weight and black color compare to those white 70-200s.
- It is a L lens: best build quality, fast/quiet ring USM AF with FTM.
Cons:
- No hard case.
- No inexpensive.
- Effective focal length is 216mm on 10D/20D/Rebel/300D which is a little difficult to use for portrait.

Give your subject a broader view with the Canon WC-DC58A wide conversion lens. Made specifically for select Canon built-in lenses, the durable unit converts the focal distance of your lens by a factor of 0.75x when attached to the camera, making it ideal for group shots or panoramic nature photos. The unit–which requires the LAH-DC20 lens adapter–is compatible with the following Canon models: S5 IS, S3 IS, and S2 IS. All Canon converters carry a one-year warranty.

* Magnification: 0.75x
* Rear mount diameter: 58mm
* Construction: 3 elements, 3 groups
* Dimensions: 3.1 inches in diameter and 1.5 inches long
* Weight: 6 ounces

Customer Feedback :
This lens does exactly what it should. The overall quality is extremely good.
- There is a substantial amount of barrel distortion. This is normal. Try not to have straight lines near the borders of the photo to make it less obvious.
- Fringing is exaggerated. You notice fringing (purple or blue tints) along high contrast edges of objects that are near the borders. You can see this on regular shots but is more exaggerated with the wide angle lens.
- The lens makes a shadow when using the built-in flash. You can see the shadow in the photo with the flash. In a darker environment, it is very obvious. The external flash is the only way to fix this.
A couple details:
- You can get an extender that is a nice brushed aluminum here:
- The camera has a setting (Converter) to indicate that you have the lens attached. It’s not obvious what it does but it is indicated by a change in the image stabilization icon so I assume that it affects the way that image stabilization works.
Overall, I recommend this lens.

Sigma launched its first standard 50mm macro lens in 1990, and followed it up with an improved model in 1998. The advent of digital SLR cameras, however, required updated optical technology and a better imaging performance. Enter the latest incarnation of the 50mm macro lens, with an improved design that corrects for various aberrations. Designed exclusively for Canon SLR cameras, this macro lens is specially coated to get the best possible color balance while cutting down on ghosting caused by reflections from the digital image sensor. The lens also includes a floating focusing system, which allows you to precisely photograph objects throughout the entire focusing range. Most importantly, this standard macro lens makes it possible to enjoy better communication with your subject. When viewing through the camera’s finder, you’ll be able to move the subject and make precise adjustments.

Technical Details :
* Macro lens designed for Canon digital SLR cameras.
* 50mm focal length.
* f2.8 maximum aperture.
* Super Multi Coating reduces flare and ghosting common to digital SLR cameras.
* Screw-in lens hood included.

Lens Specifications :
* Focal length: 50mm
* Maximum aperture: f/2.8
* Lens construction: 10 elements in 9 groups
* Angle of view: 46.8 degrees
* Number of diaphragm blades: 7
* Minimum aperture: f/45
* Minimum focusing distance: 7.4 inches
* Maximum magnification: 1:1
* Filter size: 55mm
* Corresponding mount: Canon
* Dimensions: 2.8 inches in diameter and 2.6 inches long
* Weight: 11.3 ounces
* Warranty: 1 year

Customer Feedback :
The lens is an excellent lens for close-up photos. I am not a professional photographer but I try really hard to get good sharp photos. This lens will do the job.
Since it is also also a 50mm lens I have used it as a normal lens. The only problem with that is that over the years many of us have been spoiled with zoom lenses. With a zoom lens you can stand in one spot and zoom the lens in or out to get closer or father from your subject. With just the 50mm capability of this lens you have to physically move in or out to get a closer shot or a wider shot. This is not necessarily a criticism, just a comment about how we have been spoiled by zoom lenses.
I do not believe you will be disappointed with this lens. The price is great for the quality.