Smart Photography 201707

Which lens?

I have a Canon EOS 600D camera.

I am planning to buy a telephoto

lens. In terms of picture quality,

which is better – the Canon EF

100-400 f/4.5-5.6L IS USM or the

Sigma 150-600 f/5-6.3? What

would be your choice?

Vinod, via email

One should normally compare two

or more lenses of similar focal

lengths. In case you are unaware,

the Canon lens is available in two

versions: EF 100-

400mm f/4-

5.6L IS II USM

(the newer

version, MRP

Rs.165,995)

and EF

100-400mm

f/4-5.6L IS

USM, MRP Rs.

118,995). Both

are good but

in my opinion,

the newer version (the IS II) is better.

It weighs 1570g compared to 1380g of

the older version.

The Sigma 150-600mm is

also available in two

versions:150-600mm

f/5-6.3 DG OS HSM

Contemporary (approx.

Rs.87,000) and 150-

600mm f/5-6.3 DG OS

HSM Sports (approx.

Rs.176,225). Here too,

both are good, but the

Sports version has a

better build quality and

is sharper of the two. It

is also heavier than the

Contemporary version

(2860g verses 1930g). It also has a

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95mm).

Between the Canon EF 100-400mm

and the Sports version of the Sigma,

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is actually sharper (considering

the Sigma only up to 400mm for

comparision) because each lens could

perform better at a particular focal

length. But all this does not answer

your query. So here is my choice:

Considering the weight aspects and

the price, I would opt for the Canon

EF 100-400mm f/4-5.6L IS II USM

(the newer version). Of course I would

miss out on the extra 200mm offered

by the Sigma, but I think I would be

quite happy with the equivalent focal

length of 160-640mm (on the EOS

600D).

Tip: At an equivalent focal length

of 640mm, your images will be 12.8

times larger than from a ‘normal’

50mm lens. This also means that

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the same amount. Hence, whenever

possible, use a sturdy tripod for the

sharpest results. |SP

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actually fade away!

5) A bit of underexposure can make

the rainbow appear stronger.

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I am a landscape and travel

photographer. I recently changed

from a Canon 550D to a Nikon

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its performance. But there is a

problem! I am unable to open

the Raw image (NEF) captured

on the Nikon in Photoshop CC for

post processing. Kindly provide a

solution to open the Raw image in

Photoshop 6 or CC.

O.M.Mathew, via email

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Photoshop CC. It is possible that you

may not have updated the software.

Please log in to your Adobe account

and update.

Photoshop CS6 does not offer support

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still want to use Photoshop CS6 to edit

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You can download the DNG converter

from Adobe’s website. You can then

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Camera Raw (ACR).

Nikon D750

Sigma 150-600mm f/5-6.3 DG

OS HSM Contemporary

Sigma 150-600mm

f/5-6.3 DG OS HSM Sports

Canon EF 100-400mm

f/4-5.6L IS USM

Canon EF 100-400mm

f/4-5.6L IS II USM

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Smart PhotographyJuly 2017

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