What’s a super telephoto lens?
Lenses with focal length greater than or equal to 300mm.
Most important aspect to consider before you buy any gear is to decide what do you want to photograph. This might seem trivial, but it is the most important thing going forward. This is as important as deciding to shoot on DSLR up from a P&S.
Why do you want to buy a super telephoto lens? Candid shots of people, Bird/Wildlife photography, sports photography or something else?
When you say focal length is important, ask yourself why is it important?
Can’t you do with a 70-300mm (Nikon/Canon/Sigma) standard telephoto or 70-200mm f/4L or f/2.8L lenses?
To quote someone: ‘ The best zoom lens i have is my legs.’
If you take a few steps towards the subject, your range automatically increases.
Ok, once you have a concrete reason to go for a longer range lens, we’ll proceed.
Lets assume, we have a standard telephoto lens of about 300mm max focal length, and a 1.6 crop sensor camera.
Why is 70-300mm/55-250mm lens not enough?
1. Can’t approach the small birds close enough to capture them, filling the frame (forget full frame!).
2. Actions are happening at a distance from where you can photograph (sporting events).
2. Quality of images, cropped, are not as the best.
3. Not fast enough. Whines to focus on the small bird, even if i have Center point focus.
4. < something more ? >
So, what options do i have?
Say, we are interested in Wildlife photography.
(If you want to shoot candid portraits 70-300mm is sufficient, if you think it’s not enough, you got to work on your technique. Mind you these birds won’t fly :P).
Super telephotos are mostly used in wildlife and bird photography, where photographer is at a safe distance from the subject. Super telephoto lenses are also used in Sports photography, but these are very fast lenses like 400mm f/2.8L, which costs nearly $7000 and hence we’ll exclude sports photography from the discussion.
For mammals, you need shorter focal length whereas for birds you need the longest focal length one can get.
Here, the decision of what i want to photograph comes handy. If you want to click birds predominantly, you ignore the shorter focal length and buy a prime (use another lens for shooting mammals) or buy a good zoom lens covering the entire range.
Options:
Zooms
1. Canon 100-400mm f/4.5-5.6L IS USM
Termed as the best wildlife lens. Covers a good range and has IS. 400mm is when focus is at infinity. Gives about 385mm under normal shooting circumstances.
Advantages: Very good image quality. Good build. “L series” lens. Flexibility of zoom from 100 to 400mm. Perfect for wildlife, especially mammals.
Disadvantages: The push pull zoom (if you aren’t comfortable). Probably little more heavier than 400mm f/5.6 Prime.
No other disadvantage as such, but if you want to photograph birds, the reach of this lens isn’t good enough. With Tele Converters (TCs) you’ll lose Auto Focus, unless you are on pro bodies (1D MK-III). Taping pins only improves the situation slightly.
Price tag: about $1350
2. Sigma 50-500mm f/4-6.3 EX DG HSM APO RF
No other lens matches the range of ‘Bigma’. EX lens, Sigma’s “L series”. Good for mammals and birds, provides excellent range and good image quality.
Advantages: Huge range, good IQ when used properly.
Disadvantages: Bulky, need to get used to it before you get good images out of it, tripod necessary (only adding to the weight), not a very fast lens. Actual reach is little under 500mm.
Price tag: about $1000
3. Sigma 150-500mm f/5-6.3 AF APO DG OS HSM
Next generation of Bigma, BigmOS comes with OS which actually works albeit little grumpy. Good range. No EX tag, but they say IQ is as good as the ones with EX.
Advantages: Light weight (can shoot hand held). OS comes in handy, and it works too! IQ pretty good.
Disadvantages: Makes little noise with OS. As with all zoom lenses, actual range is under 500mm, about 460mm. Heavier than Canon 100-400. Image quality at 500mm not very impressive, Canon 100-400 at 400mm extrapolated to 500mm gives better IQ. Also, aperture is 6.3 at 500mm. But Have a look here for IQ before you write off this lens.
Price tag: about $900
Primes
4. Canon 400mm f/5.6L
An “L series prime”, but without IS.
Advantages: Excellent “L series” image quality. Perfect lens for Birds in flight and focuses really fast. 400mm actually gives 400mm.
Disadvantage: You’ll need another lens to cover the range up to 400mm, especially for photographing big mammals. If you have a 70-300mm or 70-200, this lens could be a good addition.
Similar problem as 100-400 with TCs, may be slightly better. Monopod is handy, to make up for the loss of IS.
Price tag: $1100
5. Canon 300mm IS f/4L + 1.4x TC
Another L series prime, but comes with IS. Faster than all other lenses above when used at 300mm. Add a 1.4x TC, giving you 420mm at f/5.6 with IS.
Advantages: L series prime quality. 420mm reach with IS. AF works well.
Disadvantages: Range, as with 400mm f/5.6L, need another lens for covering up the focal length range. The price for the combo is little more than you’d pay for others.
Price tag: about $1050 + $250 for Canon EF 1.4x II TC, total $1300.
P.S.:
1. I have listed only lenses under $1500.
2. I have listed only Canon lenses, as i am more familiar with Canon. Nikon too has similar lenses at similar price tag (Like 80-400mm instead of 100-400). Exception is Nikon 200-400 f/4G VR, which doesn’t have an equivalent in Canon, and is in a different league altogether at $5000+ a piece.
3. I’m researching for an upgrade and this post is to make it easier for amateurs in the same boat. I still am not sure whether to buy Canon 400mm f/5.6L prime or Sigma 150-500mm OS.
update:
This compilation and the prices are on the day of the article written. And are subject to change.
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