Lensa Kamera DSLR

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Canon 18-135mm f/3.5-5.6 IS

Lensa EF-S 18-135mm f / 3.5-5.6 IS dari Canon adalah

Lensa EF-S 18-135mm f / 3.5-5.6 IS dari Canon adalah lensa zoom telefoto wide-angle dengan field-of-view 29-216mm dalam format 35mm. Lensa ini dirancang untuk digunakan dengan kamera Canon APS-C EOS Digital SLR. Dengan ukuran panjang hanya 4,0″ (10 cm) dan berat sekitar satu pon, lensa ini menawarkan serangkaian panjang fokus serbaguna yang cocok digunakan sehari-hari.

Berisi 16 element (termasuk elemen kaca UD) dalam 12 group, lensa Canon 18-135 mampu menangkap rentang sudut pandang 74,2 ° hingga 11,3 °, yang cukup lebar untuk sebagian besar bidikan interior dan cukup panjang untuk menangkap subjek yang jauh.

Lensa ini dilengkapi internal focusing system dengan jarak fokus minimum 1,5′ (45 cm), dan menyediakan optical image stabilization hingga 4-stop compensation terhadap blur saat memotret dalam kondisi low light.

Canon 100mm f/2.8 USM Macro

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Tamron 70-300mm f/4-5.6

The Tamron 70-300mm f/4-5.6 Di VC is a new telephoto

The Tamron 70-300mm f/4-5.6 Di VC is a new telephoto zoom that covers a convenient and popular telephoto range. In Tamron terminology, Di means the lens is optimized for digital cameras and VC is vibration compensation, similar to Canon's image stabilization (IS) and Nikon's vibration reduction (VR).

Auto Focus

The Tamron 70-300mm lens has the higher-end AF motor so that one can manually override AF in real time; there is no need to switch off AF first before one can manually focus this lens. Under bright sunlight, AF speed is quite reasonable. However, under dim light, due to its f/5.6 maximum aperture on the long end, AF tends to hunt a bit. Overall, I am quite happy with the AF speed and accuracy.


I ran a number of comparisons at 300mm among the Tamron zoom, Nikon's 300mm f/2.8 AF-S, and Nikon's new 28-300mm f/3.5-5.6 AF-S VR zoom. The 300mm f/2.8 is among the sharpest lenses I own and when it is stopped down to f/5.6, it is simply super. Of course the Tamron zoom is not quite at that level, but it comes surprisingly close. The Nikon 28-300 super zoom is still respectable on the FX-format D700, but on the DX D300 with denser pixels, it looks a little soft. Overall, I would say sharpness is the greatest strength for this Tamron zoom.

There is a small amount of barrel distortion on the long end of this zoom lens, i.e. at 300mm. The distortion is still noticeable at 135mm, but at the minimum 70mm, this lens is essentially distortion free.

The Tamron zoom exhibits a small amount of chromatic aberration as there is a clear color band in any light-to-dark transition. In comparison, chromatic aberration is much better controlled on Nikon's 300mm f/2.8.

Concerning vignetting, I captured images of a uniform blue sky with the zoom wide open at 70mm as well as 300mm. There is a bit of darkening in the corners but that is not something I would be concerned about.

Vibration Compensation

My estimate is that VC on the Tamron 70-300mm can provide somewhere between 2 to 4 stops of vibration reduction. If I hand hold the lens at 300mm, typically I can get a reasonably sharp image at 1/60 sec with a still subject. In other words, a 2 to 3 stop gain is usually achievable. When engaged, Tamron's VC make a noticeable "click" sound and if you pay close attention to the image in the camera's viewfinder, it will make a sharp jump before settling down, which indicates that the VC elements are making some quick movement inside. In contrast, Nikon's VR is smoother and quieter.

Lens Construction

The lens comes with a HA005 lens hood that is made in the Philippines. It is a modern "petal" style hood that is very deep. While it does a good job preventing stray light from entering the front end of the lens, should have you a polarizer on the lens, it is difficult to rotate the filter when the hood is on.

Speaking of polarizers, the front of this lens does not rotate when you focus. Therefore, it is unnecessary to re-adjust the rotation of the polarizer after focusing. This lens has a front element that is very close to the very front of the lens; therefore, I think it is fairly easy to scratch the front element such that a clear protection filter is probably a good idea.

Construction-wise, it is fairly typical consumer grade with a plastic barrel, but the lens mount is metal. Unlike a lot of new Nikon lenses, the Tamron has no rubber ring around the mount to seal moisture out between camera and lens. The focus ring is a little too loose. Rotation of the zoom ring is slightly rough as the lens needs to physically extend quite a bit when it zooms from 70mm to 300mm. Overall, I would say the build quality is acceptable; it is not an area of concern, but the feel is quite different from those higher-end lenses that cost a lot more; that should be expected.


The Tamron 70-300 has two rings, for zooming and focusing. The zoom ring rotates in the same direction as the zoom rings on Nikon zoom lenses. (That is, if you have a zoom lens mounted on your camera and you are looking through the viewfinder, you rotate the zoom ring clockwise to increase the focal length). However, the focus ring rotates in the opposite direction. On the Tamron, you rotate clockwise to focus closer; on a Nikon lens, you rotate counterclockwise to focus closer. To me, it is not an issue, especially since I use auto focus most of the time. However, it annoys some people.



The Tamron 70-300mm f/4-5.6 Di VC is surprisingly good optically. It is merely a little bit less sharp compared to my Nikon 300mm f/2.8 AF-S, stopped down to f/5.6. The Tamron does have more chromatic aberration, i.e. color fringing in light-to-dark transitions. Construction wise it is very typical consumer grade with mostly plastic components, but the lens mount is metal; I consider that adequate.

Similar to all other 70-300mm lenses, the long end is on the slow side at f/5.6. It is not an issue under bright sunlight, but at dawn and dusk as well as indoors, it is frequently necessary to turn up the ISO. In other words, this lens is good for outdoor telephoto photography such as family, children sports, and casual wildlife photography. For those who are interested in a telephoto zoom on a budget, the new Tamron 70-300mm is an excellent choice.

CANON 50mm f/1.8

Street price • $90
Street price • $90 (US)
• £90 (UK)
Date introduced December 1990
Maximum format size 35mm full frame
Focal length 50mm
35mm equivalent focal length (APS-C) 80mm
Diagonal Angle of view (FF) 47º
Diagonal Angle of view (APS-C) 31º
Maximum aperture F1.8
Minimum aperture F22
Lens Construction • 6 elements / 5 groups
Number of diaphragm blades 5
Minimum focus 0.45m (1.5 ft)
Maximum magnification 0.15x
AF motor type DC Micro Motor
Focus method Unit focus
Image stabilization • None
Filter thread • 52mm
• Does not rotate on focus
Supplied accessories Front and rear caps
Optional accessories ES-62 hood
Weight 130g (4.6 oz)
Dimensions 68.2mm diameter x 50.5mm length
(2.7 x 2.0 in)
Lens Mount Canon EF only

LENSA TOKINA 11-16mm f2.8

1 Tokina 11-16mm f/2.8 Lens for Canon 1 back

1 Tokina 11-16mm f/2.8 Lens for Canon

1 back cap

1 bag

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