Sigma 120-400mm f/4.5-5.6 DG OS HSM APO Autofocus Lens for Canon

In Stock
Item ID: 226575
Manufacture: Sigma
Condition: New

Extended Warranty Coverage:

Extended Warranty Program is designed to provide you with additional coverage for manufacturer defects. Electronic malfunctions always seem to happen right after the Manufacturer Warranty expires! When you purchase an extended warranty you purchase that peace of mind for those unexpected malfunctions and costly repairs, you are making a wise investment for your equipment.

Buying an extended warranty service plan not only means you are getting the highest level of customer service, but also means you can rest assure in the event your product needs repair. The technicians we have are factory trained and authorized to repair your product and we are using the most up to date computers and state of the art testing equipment needed to properly diagnose and repair your product. There is no limit to the number of repairs throughout the life of your service plan. If it is determined that your product can no longer be repaired, it will be replaced with a new product of like kind and quality.

No Added Charges You will not pay any out of pocket expenses for your repair. Unlike some protection plans that charge a deductible, your service plan covers all expenses related to repairing or replacing your product. We want to make sure you are happy with your product. If your product fails and needs repair three times for the same reason (outside the manufacturer's warranty), it will be replaced. You can sell or give your product away at any time. The coverage can be transferred to the new owner with one phone call.

Enjoy a true worry free experience for your new product. We'll keep your product working like new and if we can't, we'll buy you a new one. Our service plans are underwritten by an A+ rated insurance carrier ensuring financial protection for the entire length of your plan.

This warranty does not cover equipment which has been misused, tampered with, modified or damaged as a result of accident, water, grit, impact or lack of proper care as indicated in the manual of operations.

-This extended warranty covers all parts and labor.

 

Extended Warranty Program is designed to provide you with additional coverage for manufacturer defects. Electronic malfunctions always seem to happen right after the Manufacturer Warranty expires! When you purchase an extended warranty you purchase that peace of mind for those unexpected malfunctions and costly repairs, you are making a wise investment for your equipment.

Buying an extended warranty service plan not only means you are getting the highest level of customer service, but also means you can rest assure in the event your product needs repair. The technicians we have are factory trained and authorized to repair your product and we are using the most up to date computers and state of the art testing equipment needed to properly diagnose and repair your product. There is no limit to the number of repairs throughout the life of your service plan. If it is determined that your product can no longer be repaired, it will be replaced with a new product of like kind and quality.

No Added Charges You will not pay any out of pocket expenses for your repair. Unlike some protection plans that charge a deductible, your service plan covers all expenses related to repairing or replacing your product. We want to make sure you are happy with your product. If your product fails and needs repair three times for the same reason (outside the manufacturer's warranty), it will be replaced. You can sell or give your product away at any time. The coverage can be transferred to the new owner with one phone call.

Enjoy a true worry free experience for your new product. We'll keep your product working like new and if we can't, we'll buy you a new one. Our service plans are underwritten by an A+ rated insurance carrier ensuring financial protection for the entire length of your plan.

This warranty does not cover equipment which has been misused, tampered with, modified or damaged as a result of accident, water, grit, impact or lack of proper care as indicated in the manual of operations.

-This extended warranty covers all parts and labor.

 

By adding the accidental option to one of our service plans, you are enabling your purchase to be covered for unintentional damages to your product as a result of: impact or dropping, liquid damage or unintentional physical damage. Dropped coffee on your keyboard? You’re Protected, Your cell phone fell out of your hand and your LCD screen cracked? You’re Protected! Your Ipod fell as you were running and now it can no longer play music? You’re Protected! Your digital camera dropped and now cannot zoom in or out? You may be considered quite clumsy, but You’re Protected. You get the idea!


This option goes above and beyond a manufacturer’s warranty which would not provide coverage on such damages as listed above. Although accidental coverage covers most damages it does not cover intentional damages of any kind or losses due to theft. When adding accidental coverage to your contract, your service plan will begin immediately upon the date of purchase and extend up to five full years. Adding accidental coverage guarantees that your product will perform as intended for the life of your coverage.

 
-Manufacturer Defects

-Impact Damage

-Sand/Grit Damage

-Accidental and Unintentional Abuse

-Mechanical Malfunctions

-Normal and Abnormal Wear and Tear

-2 Free CCD Cleaning for the Life of the Contract

-1 Free Video Head Cleaning Per Year for the Life of the Contract

 

By adding the accidental option to one of our service plans, you are enabling your purchase to be covered for unintentional damages to your product as a result of: impact or dropping, liquid damage or unintentional physical damage. Dropped coffee on your keyboard? You’re Protected, Your cell phone fell out of your hand and your LCD screen cracked? You’re Protected! Your Ipod fell as you were running and now it can no longer play music? You’re Protected! Your digital camera dropped and now cannot zoom in or out? You may be considered quite clumsy, but You’re Protected. You get the idea!


This option goes above and beyond a manufacturer’s warranty which would not provide coverage on such damages as listed above. Although accidental coverage covers most damages it does not cover intentional damages of any kind or losses due to theft. When adding accidental coverage to your contract, your service plan will begin immediately upon the date of purchase and extend up to five full years. Adding accidental coverage guarantees that your product will perform as intended for the life of your coverage.

 
-Manufacturer Defects

-Impact Damage

-Sand/Grit Damage

-Accidental and Unintentional Abuse

-Mechanical Malfunctions

-Normal and Abnormal Wear and Tear

-2 Free CCD Cleaning for the Life of the Contract

-1 Free Video Head Cleaning Per Year for the Life of the Contract

 


Also available:

Sigma 120-400mm f/4.5-5.6 DG OS HSM APO Autofocus Lens for Canon
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Sigma 120-400mm f/4.5-5.6 DG OS HSM APO Autofocus Lens for Canon Sigma 120-400mm f/4.5-5.6 DG OS HSM APO Autofocus Lens for Canon Sigma 120-400mm f/4.5-5.6 DG OS HSM APO Autofocus Lens for Canon

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The 120-400mm is a fairly sharp lens, but its performance is optimized for the wider range of its focal length spectrum. As you zoom in towards the 400mm range, image sharpness degrades significantly. Optimal image sharpness was achieved at either 120mm and ƒ/5.6, or 150mm and ƒ/8.

Wide open and wide-angle (120mm, ƒ/4.5) image sharpness is quite good, with test results showing 1.5 blur units across the frame. Stopping down to ƒ/5.6 improves central sharpness to 1 unit, but there is still some very slight corner softening. Diffraction limiting seems to set in at ƒ/11, but image quality never gets so bad, reaching 2.5 blur units at ƒ/22. Results at 150mm are almost the same, just a tad less sharp.

However, at 200mm and above, image sharpness starts to worsen. Our sample copy of the lens also showed some centering issues at this focal length. Sharpness showed results of between 1-2 blur units in a very small central region, while corner softness reached 4.5 blur units; as the lens is stopped down, quality improves dramatically at ƒ/8 and ƒ/11 (1 blur unit centrally, 2-3 units in the corners) and the image is generally soft at ƒ/25 (3 blur units).

Between 300 and 400mm, performance when used wide open (ƒ/5.6) is nothing to write home about - very uneven and soft (3-5 blur units at 300mm, and 5-8 units at 400mm). Stopping down to ƒ/8 or ƒ/11 is necessary to get any kind of sharpness out of the lens at this focal length. Interestingly, image sharpness is better at ƒ/22-29 than when used wide open at these focal lengths.

Full-frame performance is similar across all focal lengths and apertures, although corner softness is generally more of a factor throughout. We do note some interesting ''blips'' of extreme corner softness, particularly at 250mm. Optimum performance on a full-frame body is 120mm or 150mm at ƒ/8.

 

Chromatic Aberration 
The 120-400mm ƒ/4.5-5.6 tolerates chromatic aberration very well, better at the wider end of its focal length range. At 120mm the lens shows less than 2/100ths of a percent of frame height CA generally, and less than 3/100ths in the corners. This is very good performance. As the lens is zoomed in and stopped down CA tolerance degrades slightly, but never objectionably. Even at 400mm and ƒ/5.6, performance is still good at less than 3/100ths generally and 4/100ths in the corners. CA performance is as good or better on a full-frame body.

Image Circle 35mm
Type Telephoto Zoom
Focal Length 120 - 400mm
APS Equivalent 1.5x: 180 - 600mm; 1.6x: 192 - 640mm
Max Aperture f/4.5 - 5.6
Min Aperture f/22
Diaphragm Blades 9
Lens Construction 21 elements in 15 groups, including 3 SLD elements
Diagonal Angle of View (Based on image circle) 20.4 - 6.2 degrees
Focus Details Internal, with HSM
Front Element Rotation No
Zoom System Rotary
Closest Focus 150cm / 59.1 in.
Magnification Ratio 0.24x / 1:4.2
Filter Size 77mm (Rear)

• Front & Rear Caps
• Lens Hood
• Tripod Collar
• Case
• Strap