Telescopic zoom lock Longteng brand new 150-600 lens trial.

IT 168 evaluation 20131month, Longteng launched the industry's first 150-600mm lens. Since then, new telephoto zoom lenses have been continuously developed, which not only enriches the "ecology and aircraft"

The choice of photographers also allows more people to try.

"Sports and stage.

Provide shooting. After three years, Longteng introduced the second generation product of 150-600mm: SP150-600/5-6.3 divcusd G2. The second generation products not only have a brand-new appearance, but also have a lot of value. So, is it worth buying?

For convenience of description, the following will

Sp 150-600/5-6.3 divcusd (A011) is called "old model150-600".

Sp150-600/5-6.3 divucusdg2 (A022) is called "new 150-600 G2".

▲ Comparison of main specifications of two generations of Longteng 150-600

▲ Longtengxin 150-600 G2

(Official product drawing, hood and tripod ring are standard accessories)

"Product model explanation

Standard & Poor's 150-600/5-6.3 Deutsche Mark

SP: Longteng high-end lens products

Di: Suitable for 135 full-frame camera.

VC: longteng anti-shake technology

USD: Longteng Ring Ultrasonic Motor

G2: the second generation

"Mirror body appearance

Atlas telescopic zoom lock Longteng new 150-600 lens picture appreciation

For a long time in the past, the difference between Longteng SP series lenses and non-SP series lenses was mainly reflected in the maximum aperture and image quality. In appearance, SP series lenses have not established their own style, and there is no eye-catching logo like Canon Red Circle and Nikon Gold Circle.

September 20 15, when Longteng introduced a new generation of SP lenses (refer to 35/ 1.8 and 45/ 1.8). Not only will the product line cover new areas, but also professional design companies will be hired to carry out a new design of the lens appearance. The new design has three main features: "Establish SP lens marking.

(resplendent decorative ring),

"The metal mirror has been treated with a touch control switch with better and clearer touch.

▲

Hui Yao Jin decorative ring

(Image from Longteng official website)

Because the Ronghuajin decorative ring is located at the joint between the lens and the fuselage, the new 150-600 G2 is actually more calm and low-key than the old 150-600. The surface of the metal mirror has been treated with a more "skin-friendly" texture, similar to new lenses such as Zeiss Touit and Batis. However, this kind of coating is easy to leave traces, especially the huge 150-600 lens, which will inevitably have some friction during carrying and shooting.

▲

Longtengxin 150-600 G2 and Canon 5D4.

(I didn't get the retail version this time, and I didn't bring a tripod ring. )

Fans usually call telephoto lenses with a focal length of more than 400mm "cannons". But if you get the new 150-600 G2, you will find that its size and weight are not exaggerated. "There is no problem with hand-held shooting, and the diameter of the zoom ring is easy to rotate in a wide range.

-If the lens diameter is thick, the zoom operation in actual use may encounter some obstacles.

▲

Longtengxin 150-600 G2 standard hood.

What's the point? Neither the official product map of Longteng nor our product map is as good-looking as the real thing, so ET suggests that you can go to a physical store to experience it if you have the conditions. )

"Shooting performance

For a telephoto zoom lens, "focusing speed and anti-shake performance are actually more important than image quality performance."

Because the performance of these two aspects directly affects whether you can shoot the picture you want-only when you shoot it clearly can you further discuss the quality of the picture.

Since the new generation of 90 macro (F0 17), Longteng has improved the focusing performance by optimizing the control program of ultrasonic motor. Moreover, this promotion has continued until today's new 150-600 G2. I remember that when I tried the old model 150-600 three years ago, ET comforted herself from time to time. After all, this is a telephoto lens within 7000 yuan. Now the new 150-600 G2 is used for shooting. Whether it is long-distance continuous focusing or close-range shooting, there is almost no case where autofocus is not powerful. "Especially the telephoto end of 600mm, compared with the old model 150-600, the improvement is very significant.

▲

Focus window of new 150-600 G2

Longteng Generation 150-600 lenses are equipped with electronic focusing distance limiter, which can lock the focusing distance in a certain range, improve focusing efficiency and reduce peripheral interference. The difference is that the limits of the old 150-600 are "15m infinity" and "whole journey"; And "the new 150-600 G2 has 2.2- 10m, 10m to infinity, and the whole process is ***3 files, which can be customized by using USB focusing base and attached software.

It is worth mentioning that "the recent focal length of the new 150-600 G2 is shortened by 0.5m, and the close-up capability is stronger.

. ET will also show a close-up sample later.

▲

New 150-600 G2 control switch

▲

Use USB focusing base to customize the focal length range.

(Image from Longteng official website)

The new 150-600 G2 is Longteng's first anti-shake lens with mode selection, and its highest anti-shake performance reaches 4.5 shutter speed. Anti-shake performance is the main shortcoming of the old 150-600. On the one hand, it is mainly based on the compensation effect, on the other hand, it is best to turn off the anti-shake function when following the shooting.

Three anti-shake modes correspond to each other:

"Daily shooting (mode 1)

: half-press the shutter to start, and shake it horizontally and vertically;

"Pan Pan (Mode 2)

: half press the shutter to start, vertical anti-shake;

"Violent mobile shooting (Mode 3)

Press the shutter completely, work instantly, and the anti-shake effect is the best.

Speaking of it, the anti-shake module before Longteng is still somewhat different from other manufacturers' solutions. So far, Longteng has not published the structural diagram of the new anti-shake module of 150-600 G2. ET speculated that it adopted a brand-new design, so it can obviously change the anti-shake performance and working mode.

Oh, yes, just like the previously released SP 85/ 1.8 Di VC USD, "Nikon bayonet version new product 150-600 G2 also uses electromagnetic aperture.

Equivalent to Nikon e lens. The lens has a built-in aperture control motor, so there is no need for the body to mechanically control the aperture contraction. On the one hand, it ensures the exposure stability under the condition of non-full aperture high-speed continuous shooting, and on the other hand, it helps to improve the sealing and durability of the bayonet.

"operability and reliability.

In order to prevent the front end of the lens from protruding naturally due to gravity, many zoom lenses have added locking mechanisms, and the old model 150-600 is no exception. The old model 150-600 can only be locked at the end of 150mm, which is the shortest length of the lens. If you want to keep the lens at the specified focal length when you walk, this locking structure is powerless.

The new 150-600 G2 adds a second locking structure: "At any focal length, push the focus ring away from the fuselage to complete the locking.

▲ Schematic diagram of the new 150-600 G2 telescopic zoom lock.

The new 150-600 G2 that ET got this time is not a retail version, and there is no tripod ring as standard. Longteng is a new 150-600 G2 "tripod ring compatible with Akka (Yajia) standard.

It can be installed on Aka standard pan/tilt without additional fast loading board. In ET's impression, no lens products have come standard with this kind of quick-loading board before.

▲

List of products and accessories of new 150-600 G2

The old 150-600 only has a simple waterproof structure on the bayonet (better than nothing), while the front lens of the new 150-600 G2 has an antifouling fluorine coating, and the main part of the lens is also sealed.

The reliability (frankly speaking, survivability) when dealing with bad weather will also be better.

▲

Blue indicates the parts with sealing design on the new 150-600 G2.

"Imaging quality

Compared with the old 150-600, the optical structure of the new 150-600 has not changed much. After comparison, it is not difficult to find that the main change is that the 1 lens is added to the last 1 lens group. If we compare the MTF curves of the next two generations of lenses, the curve changes at the 150mm end are almost the same, and the contrast and edge image quality of the new 150-600 wins are better when the aperture at the 600mm end is fully opened.

▲ Optical structure of new 150-600 G2

▲ Optical structure of old 150-600

150-600 lenses are coated with longteng eBAND broadband, which can reduce the possibility of glare and ghost. However, the size of the front lens of the super telephoto lens is not small, and the light receiving area is large. Whether it is to protect the lens or reduce the reflection, ET recommends that you wear a hood when using it.

"expansion ability

As mentioned earlier, the new 150-600 G2 can customize the autofocus, focus limit and anti-shake modes through the USB TAP-in console. This is not initiated by Longteng, but conforms to the trend of the times.

After entering the autofocus era, Longteng has never introduced an extended-range lens, which is undoubtedly the shortcoming of telephoto and ultra-telephoto lenses. When releasing the new 150-600 G2, Longteng also introduced TC-X 14 and TC-X20 rangefinders, which filled a gap in the lens system.

Need to remind everyone that only the new 150-600 G2 can match these two range extenders among the lenses currently sold by Longteng. On the camera supporting maximum aperture F8 autofocus, the new combination of 150-600 G2+ 1.4x rangefinder can still be used for autofocus-"With Canon 7D2/80D and Nikon D500/D7 100/D7200, you can get/kloc-0.

"Summary and purchase suggestions.

To sum up, the improvements of the new 150-600 G2 include:

The imaging quality of 600mm end is better.

The focusing and anti-shake performance are significantly improved.

Improve operability and reliability.

Can be matched with various peripheral accessories.

ET pats birds and animals when it's okay. As a non-professional photographer, ET pays attention to whether the zoom lens is convenient to hold, then focusing, anti-shake and finally imaging quality. Although there are more and more telephoto zoom lenses in the past two years, the products suitable for hand-held shooting are still limited.

What, do you think a lens of less than 2kg 150-600 is heavier? ET has seen girls who have concerts in idols with 6D/70D and Longteng old model 150-600. We men cannot be cowards. Conditional friends, might as well go to the physical store to end it.

"The real evidence.

I was bored in the office for a long time. When ET just got the new version 150-600 G2, I really didn't know what to shoot ... So, the final sample was completed by ET, Ning Sixiao and Azhuo. ET also lent the lens to a senior wildlife photographer, and can look forward to the teacher's work.

▲

Shooting birds is the first theme people think of after seeing the focal length of 600 mm

(5D4 | 600mm | f 7.1|1/4000s | ISO-400)

▲

Close shot

(5D4 | 600mm | f11|11000s | ISO-2000)

▲ Jiao Wai point of 600mm F8.

(5D4 | 600mm | F8 |11000s | ISO-320)

▲ Sunrise and sunset are also scenes suitable for telephoto lenses.

Attachment: History of Longteng telephoto lens

When doing this article, ET also checked the historical products of Longteng telephoto lens by the way, here as an extended reading.

1994, Longteng introduced AF 200-400/5.6 LD IF( 175D), giving photographers who like to shoot birds a more compact and intimate choice. In 2004, Longteng introduced SP series AF 200-500/5-6.3 Di LD IF(A08), which expanded the focal length range and improved the imaging quality while maintaining the original weight. The production and sales of A08 only lasted for 10 years, and it was not until the release of SP150-600/5-6.3 divCusd (A011) that it was announced to stop production and withdraw from the market.

▲

Longteng AF 200-400/5.6 LD IF (175D)

▲

Longteng AF 200-500/5-6.3 Dildif (A08)

Two generations of 150-600 released by 20 13 and 20 16 are the third and fourth generation telephoto zoom lenses of Longteng.

★ About the author ★

Faye Ting, net name et. Member of China Photographers Association, senior photographer. He has worked in mass photography, Netease Digital and other media, and served as a lecturer for offline activities of Canon, Nikon and Sony.

▲ WeChat scan code pays attention to more dry goods.