July 17, 2018, 09:27:50 PM

Author Topic: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone  (Read 9941 times)

Canon Rumors

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*Update* I removed the word “clone”, as the optical layouts are someone different (Thanks Keith).

A Professional Lens of Capturing Grand View

YONGNUO Ultra-wide Angle Prime Lens YN14mm F2.8

¨ 114° Ultra-wide Angle

The diagonal angle of view is about 114°. For YN14mm F2.8 helps to collect the vast landscape and giant structures, it’s easier to show a grand and solemn atmosphere.

High-precision,Ultra-low Dispersion and Aspherical Lens

It carries two high-precision aspherical glass lenses, one of which adopts ultra-low dispersion lens, which effectively compensates various optical aberration,  minimizes chromatic aberrations, and provides excellent sharpness and color correction.

¨ Precision-machined Abnormal Dispersion Lens

YN14mm 2.8 adopts 1pcs of abnormal dispersion lens, which helps to better control the dispersion problem from super-wide angle and large aperture, and, helps to improve second order spectrum.

¨ Glass Optical Lens, Multilayer Coating

It adopts glass optical lens and multilayer coating technology to effectively increase light transmittance and minimize backlight ghost image and glare.

¨ Firmware Upgrade

YN14mm F2.8 is equipped with USB port. The users can download the latest firmware from the official YONGNUO website and update the lens to keep the best compatibility and performance.

¨ F2.8 Large Aperture

With F2.8 bright and large aperture, background blurred, subject highlighted.

¨ Focus Modes: Auto Focus (AF) and Manual Focus (MF)

YN14mm F2.8 supports auto focus and manual focus. The focus mode can be selected according to practical requirement.

7 pieces of Aperture Blades

YN14mm F2.8 has 7 pieces of aperture blades, which helps to take picture of circular defocused spots and helps to reduce the aperture and take picture of 14-star effect.

¨ Durable Metal Mount

YN14mm F2.8 adopts chrome-plated and high-accuracy metal mount. It’s wearable, corrosion-resistant, and highly consistent with the camera.

¨ Focus Distance Indicator

YN14mm F2.8 is equipped with focus distance indicator. It’s convenient for you to judge the distance and the depth of field.

¨ Gold-plating Technology

The metal contacts adopts gold-plating technology,which brings the advantages of excellent signal transduction ,perfect image quality and new performance breakthroughs.

Specifications

 Focal Length 14mm
 Lens Structure 9 groups 12pcs
 Diaphragm Leaves 7pcs
 Minimum Aperture 22
Minimum Focus Distance Approx 0.2m
Maximum Amplification Factor Approx 0.15x
Drive System DC Motor
Maximum Diameter and Length Approx Φ86×105mm
Weight Approx 780g
« Last Edit: December 29, 2017, 12:49:02 PM by Canon Rumors »
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keithcooper

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No they didn't ;-)
« Reply #1 on: December 29, 2017, 12:29:52 PM »
Optics of the EF14 2.8l, EF14 2.8L II and the Yongnuo 14/2.8

Quite a difference?  (Canon images from Canon camera museum)

sulla

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Re: No they didn't ;-)
« Reply #2 on: December 29, 2017, 01:06:29 PM »
Quite a difference?  (Canon images from Canon camera museum)
Yes, quite a difference!
5D & EF 8-15, EF 16-35 2.8 II, EF 24 1.4 II, EF 24-70 2.8 II, EF 35 1.4 II, EF 40, MP-E 65 Macro, EF 85 1.2 II, TS-E 90, EF 100 L Macro, EF 70-200 2.8 II

Bennymiata

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #3 on: December 29, 2017, 06:28:52 PM »
Pity they didn't strike out and make it a 10 or 11mm, but I'll be interested in how it performs.

Brymills

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #4 on: December 29, 2017, 07:59:41 PM »
Is this the first EF mount auto-focus lens apart from Canon / Sigma / Tamron / Tokina?

Ryananthony

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #5 on: December 29, 2017, 09:37:43 PM »
Is this the first EF mount auto-focus lens apart from Canon / Sigma / Tamron / Tokina?

Yongnuo has a few Autofocus EF mount lenses actually, including a 35/2, 50/1.8, 85/1.8, and a 100/2. They also have a 2x teleconverter.

https://yongnuousa.net/t/lenses

MrFotoFool

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #6 on: December 29, 2017, 11:57:20 PM »
Using the link above, I note that they call their 2x extender version iii also (to copy Canon), even though I am sure it is the first version from Yongnu.

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #6 on: December 29, 2017, 11:57:20 PM »

James Larsen

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #7 on: December 30, 2017, 10:11:52 AM »
I'm interested to see how the AF motor is on this thing.
I wonder how much it'll cost...

tron

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #8 on: December 30, 2017, 08:40:29 PM »
Time for Canon to make a version III iteration of the lens or make a faster version of it (say f/2.0) or ... both!  ;D
« Last Edit: January 02, 2018, 07:26:58 AM by tron »

mb66energy

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #9 on: December 31, 2017, 05:40:56 AM »
@Bennymiata: Yes, a 10mm EF-S would be a good thing for me.
@James Larson: Costwise I read sth. about ca. 500 USD

While I am thinking about switching back to APS-C after an excursion with a 2nd hand 5D classic maybe the quality of this Yongnuo lens is absolutely sufficient for a 13MP resolution sensor of the 5D classic and might be much better in overall IQ compared to the 200D with 10-22 EF-S. Thinking of some UW images of landscapes, architecture, and similar + timelapse videos. The 5D is able to deliver material for 4k.
Most used tools: EOS 200D + EF-S 60mm + EF 100mm Macro + EF f/2.0 100  + 4.0 / 70-200 IS

nubu

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #10 on: December 31, 2017, 06:11:09 AM »
Will be interesting to see how it behaves against the "stellar" Sigma Art 14/1.8 which I tested against the actually quite poor Canon one ... https://www.dpreview.com/forums/post/59871149
5DII/III,7D,400D,m|EF14/2.8LII,EF24/1.4LII,EF35/1.4L,EF40/2.8,EF50/1.4,MPE65/2.8,EF85/1.2L,EF100/2.8LIS,EF135/2L,EF200/2.8L,EF300/2.8LIS,EF500/4LIS,Zeiss500/8,EF1.4xIII,EF2xIII,EF8-15/4L,EFS17-55/2.8IS,EFS18-55/3.5-IS,EF24-105/4,allEFM

keithcooper

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #11 on: December 31, 2017, 06:44:59 AM »
Will be interesting to see how it behaves against the "stellar" Sigma Art 14/1.8 which I tested against the actually quite poor Canon one ... https://www.dpreview.com/forums/post/59871149
Interesting comparisons, but only for a very specific usage.

It's actually the only thing I don't (can't) regularly test when reviewing wide angle lenses, so is interesting to see. It was this that led me to refine my laser star experiments to test such stuff in the daytime, which in many ways is much more repeatable than the actual sky (and warmer, and practical in a city)

I've used the EF14/2.8L II for quite a bit of work in the past and only got rid of it when I'd used the 11-24 F4L for a while. The 14mm responds to software correction well, and at practical apertures is quite good.

The Laowa 12mm is, for example, useful for architecture because of its very good rectilinear performance. Its coma is quite noticeable wide open. Then again you don't shoot such stuff wide open...

The problem I have with normal UWA lenses and architecture is the lack of shift - There's only so many leaning buildings I want.

I'm curious to see how the Irix 11mm performs after testing the 15mm recently, but what particularly interests me about the Yongnuo is its AF

privatebydesign

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #12 on: December 31, 2017, 07:03:05 AM »
I used two of the Canon 14mm MkII's and was very disappointed whereas I have been happy with the 11-24. The zoom is a much finer optic at 14mm and f4 and if the only advantage of the prime is the f2.8 it seems pointless if you can't actually use it, which was my experience. Much better to make a smaller lighter and cheaper f4 prime that satisfies demands the big heavy and expensive zoom can't. Mind you for years the Nikon 14-24 was hailed as a holly grail benchmark lens that determined system options for some, nowadays it looks very middle of the road for performance that is bested everywhere by the Canon zoom at any focal length from f4, and again, if the f2.8 isn't usable I don't see much point to it.

I didn't try the 14's at closed down apertures as, for my uses, it wasn't the reason for the lens.
Too often we lose sight of the fact that photography is about capturing light, if we have the ability to take control of that light then we grow exponentially as photographers. More often than not the image is not about lens speed, sensor size, DR, MP's or AF, it is about the light.

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #12 on: December 31, 2017, 07:03:05 AM »

snoke

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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #13 on: January 01, 2018, 03:49:45 PM »
What next?

Yonguo EF-mount DSLR?
:) :)


Canon:
35/2.0 in 1990
50/1.8 in 1987/1990
85/1.8 in 1992
100/2.0 in 1991
14/2.8 in 1991 (II = 2007)

First Younguo from Canon "L", only prime, no zoom.

Next:
20/2.8 ?
28/1.8 ?
25/1.4 ?

Why all prime? Curious. Not problem for zoom turn (Canon/Nikon)?

Next Yonguo do cheap big white lens?
200/1.8 ?
200/2 ?
200/2.8 ?
300/2.8 ?

Anyone want buy this and not Canon?
For Chinese only?


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Re: Yongnuo Develops a Canon EF 14mm f/2.8L II Alternative, Not a Clone
« Reply #14 on: January 02, 2018, 04:42:55 AM »