WHAT YOU ALWAYS WANTED TO KNOW ABOUT SUPER TELEPHOTO LENSES (AND YOU DARE TO ASK)

WHAT YOU ALWAYS WANTED TO KNOW ABOUT SUPER TELEPHOTO LENSES (AND YOU DARE TO ASK)

The possibility of approaching something artificially through a telephoto lens has always seemed fascinating, almost magical. Being able to transform a point in the distance into the beautiful image of a bird on a branch, or to be able to capture details and close-ups at distances of vertigo, never ceases to amaze me. All this is possible thanks to those lenses so light (note the irony) that we see that carry wildlife photographers or paparazzi and that allow to obtain images of elements that are many meters away without having to approach them.

WHAT IS A SUPER TELEPHOTO LENS?

We consider that a telephoto lens becomes super telephoto, when it has a focal length  equal to or greater than 200mm. Although there are telephoto lenses that reach 1,200mm of focal length (such as the Canon brand, which weighs almost 4kg, and is valued at $ 120,000), the most common thing is to talk about super telephoto lenses (also known as long telephoto lenses ) with a focal length between 200mm and 600mm. These telephoto lenses are the most used, which have a greater variety and with more affordable prices , so it will be approximately of these focal ranges that I will talk about today.

MAIN CHARACTERISTICS OF TELEPHOTO LENSES

Each focal length is associated with particular characteristics, not only depending on what they are able to approach or move away from what we want to photograph, but other aspects such as the angle they cover, distortion, depth of field or the distance between The different planes of an image.

VISION ANGLE

It is the portion of the scene that the target is able to capture but measured in degrees. A wide angle, for example, is capable of capturing a lot of viewing angle (around 60º-100º depending on the exact focal length). Instead, a telephoto lens captures much less portion of the scene (lower viewing angle). As you can see in the following graph, it is reduced as we increase the focal length. In long telephoto lenses we talk about a viewing angle that is between 2º and 10º, which means that we have practically no angle or, which is the same, that we will get closed planes or close-ups at long distances.

DEPTH OF FIELD

Super telephoto lenses are also characterized by having a very low depth of field which, translated into the image, means that the background of what we are photographing will always be out of focus. The longer the focal length, the more this effect is accentuated, which we can also accentuate by playing with the aperture of the diaphragm . Remember that the more you open the diaphragm, the more light will enter the sensor and the more depth of field will be reduced (less area focused on the image).

DISTANCE BETWEEN PLANES

Another feature of telephoto lenses is how they reduce the distance between planes. That is, the longer the focal length, the more the main figure seems to overlap with the background. Look at the following image and you will see how the planes come together as the focal increases. If we also add the shallow depth of field that these types of objectives have, many times we will simply see a colored background rather than a background with its own entity, as in the following image.
Images with very shallow depth of field and planes close together

DO YOU NEED A SUPER TELEPHOTO LENS?

An objective TV is designed to get very close when we don't usually do it. This is the case of the photograph of:
  • wild Fauna. ( Here a recommendation of the best lenses to photograph).
  • press.
  • sun and / or moon .
  • sports.
Photograph taken with a 150.0-600.0 mm f / 5.0-6.3 lens and taken at 600.0mm · ƒ / 8.0 · 1 / 100s · ISO 100

WHAT SHOULD I CONSIDER WHEN CHOOSING ONE?

There are as many goals as you can have. But my main advice is that before looking at anything, you set the maximum budget that you are willing to spend and once you have it, you start looking at the rest of the features. Because this is as always, the more expensive, generally, the better, there is not much secret. And as you can get excited to infinity and talk about expensive goals, it is best to set a maximum budget before starting .
  • Luminosity: With such long focal points, the luminosity of the objective is very important in order to work with speeds high enough to freeze the image without trepidation or movement.
  • Fixed optics or zoom ?:As a lover of fixed optics, I usually defend them to death but in this case, I sincerely believe that a zoom lens can be more useful than a fixed one. Above all and mainly, because what you want to photograph normally, moves, and you can't always do it
  • Image stabilizer: If there is a lens that needs a stabilizer , it is certainly one with a long focal length. With the super telephoto lenses, even working at high speeds, you will see that any trepidation or slight movement can be recorded in the image.

SOME BASIC NOTES TO WORK WITH A SUPER TELEPHOTO LENS

You can not embark on the adventure with your newly released toy without first investigating a little about the best way to take advantage of it . Although enthusiasm and practice are 50% of an image, preparation, technique and material are the other half. So here I leave you some basic notes to keep in mind before going for a walk with your brand new super telephoto lens.
Investing in a good tripod is essential
  • You will need a tripod yes or yes ... and a really good one. Very robust and with swivel ball joint. For this type of lens with such long focal lengths, the ideal is to fix them through a ring to the tripod to give them extra stability.
  • Self-timer: because any vibration working with such closed fields can lead to a wrong photo.
  • Ideally, check if your camera can block the mirror to prevent it from rising to contribute to the trepidation of the image.
  • Work with as much light as possible; that is, with generous apertures, to be able to use good shutter speeds.

SUPER RECOMMENDED TELEPHOTO LENSES

Notice for navigators: here you have a small selection of long telephoto lenses to take a look at. The selection is based on a good value for money. There are longer focal lengths and large openings but they are unpayable and are hardly justified unless they are your way of earning your bread. Now, I warn you that in these objectives, quality is expensive

1. CANON EF 100-400MM F / 4.5-5.6L IS

Canon EF 100-400mm f / 4.5-5.6L IS II USM - Lens for Canon (Focal Distance 100-400mm, Aperture f / 4.5-5.6L IS II USM), Black and White * - Camera
From Canon (Designer)
Price: € 1,997.00
(As of: 2020/01/22 7:29 am - Details)
6 new from € 1,997.00 0 2nd hand
Watch now *
(* = Affiliate Link / Image Source: Amazon Affiliate Program)

2. NIKON AF-S 200-500MM F / 5.6E ED VR

Nikon AF-S NIKKOR 200-500 mm 1: 5,6E ED VR - Objective * - Accessory
From
Price: (price not available at this time)
(As of: 2020/01/22 7:29 am - Details)
0 new 1 From 2nd hand from € 1,144.00
Watch now *
(* = Affiliate Link / Image Source: Amazon Affiliate Program)

3. SIGMA 150-600MM F / 5-6.3 DG OS HSM | S

For Canon:
Sigma 150-600 / 5-6.3 DG OS HSM (C) EOS - Objective * - Electronics
From
Price: € 950.94
(As of: 2020/01/21 5:52 pm - Details)
9 new from € 950.94 1 Second hand from € 1,068.75
Watch now *
(* = Affiliate Link / Image Source: Amazon Affiliate Program)
For Nikon:
Sigma 150-600mm F5-6.3 DG OS HSM, Lens for Nikon F reflex camera (150 - 600 mm, f / 5 - 6.3), black * - Electronics
From
Price: € 906.99
(As of: 2020/01/21 5:52 pm - Details)
8 new from € 530.00 1 Second hand from € 1,186.34
Watch now *
(* = Affiliate Link / Image Source: Amazon Affiliate Program)

4. TAMRON SP 150-600MM F / 5-6.3 DI VC USD

For Canon:
Tamron T80174 - SP 150-600 mm F / 5-6.3 Di VC USD G2 lens for Canon, Black * - Electronics
From
Price: (price not available at this time)
(As of: 2020/01/21 5:52 pm - Details)
8 new from € 1,099.00 1 Second hand from € 1,021.00
Watch now *
(* = Affiliate Link / Image Source: Amazon Affiliate Program)
For Nikon:
Tamron T80177 - SP 150-600 mm F / 5-6.3 Di VC USD G2 lens for Nikon, Black * - Electronics
From
Price: € 951.05
(As of: 2020/01/21 5:52 pm - Details)
You save: € 647.95 (41%) (41%)
10 new from  592.00 1 Second hand from € 1,021.00
Watch now *
(* = Affiliate Link / Image Source: Amazon Affiliate Program)
These are 4 good recommendations, but there are cheaper ones ;-), especially if you give up some focal length. Think that if you do not have a full frame camera , there is the conversion factor (also known as the cropping or multiplication factor) which means that you must multiply the focal length by 1.5, 1.6x (depending on the sensor of your camera) which in it actually gives you much longer focal distances. If you have a DX camera, you may want to take a look at our article on telephoto lenses hort .
The DX format has an associated clipping or multiplication factor that "lengthens" the effective focal length of the lens.
You can see it in the following table: clipping factor

DON'T GIVE UP ON YOUR DREAM DUE TO LACK OF BUDGET

Did you know the teleconverters? You can already release air, in photography almost everything is possible, whatever the budget you have. In this case, to replace the super telephoto lenses, we have the focal multipliers or teleconverters  that, textually I quote a part of the article that we dedicated at the time, are: « a cylindrical device formed by several lenses that is placed between the camera and the objective to increase the focal range, or what is the same, get closer to the scene. » I don't know about you, but every time I finish an article about goals, I'm dying to have them in my hands, and that's how my Amazon wish list is increasing by exorbitant steps  We don't have cheap dreams! And you? Have you ever dreamed of having a super telephoto lens among your photographic material? Do you add it to your wish list? Last but not least, would you be encouraged to share this article to see if anyone else is interested in it? Thank you very much and see you next time.

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