Assessment: TTArtisan 28mm 5.6 M

Introduction

When individuals hear TTArtisan many might join that title to very quick lenses just like the 50mm 0.95 or the 90mm 1.25, however right now we’re taking a look at one thing very completely different: a compact 28mm 5.6 for M-mount.
A most aperture of f/5.6 doesn’t sound that thrilling, however then tiny lenses are at all times welcome right here, so let’s have a more in-depth look!
The lens is being examined on 24mp Leica M10 and 42mp Sony A7rII.

Pattern Photographs

You’ll find many of the pattern photos in full decision right here.

Specs

From the surface the TTArtisan 28mm 5.6 appears nearly precisely just like the Leica 28mm 5.6 Summaron-M which sells for 10 instances as a lot, the optical design is totally completely different although, so we’re not coping with a 1:1 copy of an previous Leica lens like we now have seen from Mild Lens Lab these days. The TTArtisan 28mm 5.6’s full specs are:

• • Diameter: 39 mm
  • Area of view: 75° (diagonally)
  • Size: 20 mm
  • Weight: 150g (with out hood, with out caps)
  • Filter Diameter: 37 mm
  • Variety of Aperture Blades: 6 (inwardly curved)
  • Components/Teams: 7/4
    
  • Shut Focusing Distance: 1.0 m
  • Most Magnification: 1:31 (measured)
  • Mount: Leica M

The lens can already be preordered from the producer’s store and B&H (affiliate hyperlink) and the worth is $298

Disclosure

The TTArtisan 28mm 5.6 M was kindly offered freed from cost by TTArtisan for reviewing function for a length of 4 weeks.

Dealing with/Construct high quality

The unique Leica 28mm 5.6 Summaron had been launched in 1955, so taking a look at this lens’ mechanical design is a little bit of a visit down reminiscence lane.

For focusing you have to use the small focus tab, the barrel itself is so small there may be nowhere to seize it. The main focus ring has a pleasant, nicely dampened resistance and turns about 90° from the minimal focus distance (1.0 m) to infinity. There’s not solely a hard-stop, there may be additionally an infinity lock, so in case your lens is about to infinity you first must push down the button on the main target tab to have the ability to change the main target distance.

Now me personally, I neither like that infinity focus lock – which slows me down lots throughout taking pictures – nor a minimal focus distance of 1.0 m – which could be very lengthy even for a rangefinder lens.

The aperture ring has full-stop click on stops and turns roughly 30° from f/5.6 to f/22.

The lens is rangefinder coupled throughout the entire distance vary and contemplating its specs I don’t count on any calibration points. My Leica M10 shows the proper 28mm framelines.

The outer casing appears to be made fully from metallic and all markings are engraved and stuffed with paint.

There’s a rectangular “classic” lens hood obtainable (once more much like that of the unique Leica lens in addition to the Voigtländer VM 21mm 3.5), however I didn’t obtain it with the lens, so I can’t let you know a lot about it.

The TTArtisan 28mm 5.6 is smaller than e.g. the Voigtländer 21mm 3.5, however the unique MS-Optics 24mm 2.0 is difficult to beat when it comes to dimension, as might be seen from the comparability above.

Vignetting

Mild falloff

Compact lenses normally present excessive vignetting figures and the TTArtisan 28mm 5.6 M is not any exception. Extensive open I measure 2.4 EV nook shading and sadly this improves solely barely on stopping down as I nonetheless measure ~ 2.0 EV at f/11 and f/16.

However, the competitors is hardly doing higher right here, the Voigtländer VM 21mm 3.5 reveals nearly the identical vignetting values.

It’s endorsed to take a look at this text first to get an thought how this brightness graph works.

Colour solid

Some extensive angle lenses present a little bit of a colour solid in the direction of the corners, the TTArtisan 28mm 5.6 reveals a slight bluish teint on the Leica M10. Not a giant deal, however one thing that may change into seen when taking photos of overcast skies or snowy landscapes.

Sharpness

infinity (42mp Sony A7rII)

The small M-mount extensive angle lenses normally wrestle on the Sony cameras and this holds true for the TTArtisan 28mm 5.6 as nicely. Heart appears good from f/5.6 and the midframe from f/8.0, however the corners by no means attain truly good decision figures.

infinity (24mp Leica M10)

Now the scenario on the Leica M10 is noticeably higher – as was to be anticipated. Whereas the nook decision isn’t document breaking we nonetheless get even and good throughout body efficiency at f/8.0 to f/11, afterwards we see a loss in decision resulting from diffraction.

Flare resistance

As at all times evaluating flare is a fancy matter since you may get any lens to look dangerous when you push it laborious sufficient and a slight change of state of affairs can have an effect on outcomes lots.

Solar exterior body

With most lenses there’s a very particular place near the nook of the body that may result in an enormous flare and the TTArtisan 28mm 5.6 is not any exception, this will simply solved by barely reframing.

What was extra of a difficulty: any mild supply exterior the body might create extreme points with veiling flare operating throughout many of the body. Possibly the hood helps right here, as I didn’t get it with the lens I shielded the lens with my hand right here, with solved the problem. Nonetheless, it was an overcast day with no direct daylight.

Leica M10 | TTArtisan 28mm 5.6 | f/5.6

Solar inside body

With the solar contained in the body some moderately small inexperienced ghosts might seem:

Contemplating the utmost aperture of f/5.6 I might have hoped for a greater efficiency right here.

Coma

100% crops from excessive nook, centered on heart, M10

Coma is a typical drawback in quick extensive angle lenses, however what about sluggish pancake extensive angle lenses? There’s a little bit of coma (and a common drop in sharpness) seen in the direction of the corners on the most aperture however stopping all the way down to f/8.0 improves the scenario considerably.

Distortion

Leica M10 | TTArtisan 28mm 5.6 | f/5.6

The TTArtisan 28mm 5.6 reveals a low quantity of barrel distortion. There isn’t any profile in Lightroom obtainable but however diealing in +4 is doing a very good job at correcting this.

Bokeh

With a 28mm lens, a maxium aperture of f/5.6 and a minimal focus distance of 1.0 m this isn’t precisely the lens you have to be taking a look at if you’re into shallow depth of discipline images. The image above is to point out you the utmost quantity of bokeh doable.

Sunstars

The TTArtisan 28mm 5.6 is utilizing 6 inwardly curved aperture blades. Some lenses with 6 aperture blades present very pronounced sunstars however this TTArtisan lens just isn’t a kind of. It’s truly very laborious to create sunstars in any respect with this lens.

Chromatic aberration

lateral

The quantity of lateral CA could be very low, nothing to fret about.

100% crops from border, Leica M10, f/11

The lens can already be preordered from the producer’s store and B&H (affiliate hyperlink) and the worth is $298

Pattern Photographs

You’ll find many of the pattern photos in full decision right here.

Additional Studying