50mm F 1.8 Vs F 1.4

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7Artisans is a Chinese visitor that produces affordable manual focus lenses for mirrorless systems such as Fujifilm Ten, Sony East, Canon EOS R and Micro Four Thirds. They launched with the 50mm f/1.i lens dorsum in September 2016 and have since produced twelve lenses including the popular 50mm f/1.8 and 55mm f/i.8 that feature in this comparison.

To exist honest, we probably wouldn’t have considered comparing these two lenses had we not received and then much positive feedback about the company from our readers. Despite knowing that the quality wouldn’t be at the level of native lenses, nosotros were curious to see whether they were a logical option for those on a very tight budget or newcomers to transmission focus photography.



Ethics statement:

We bought the two 7Artisans lenses for our personal use. Nosotros were not asked to write anything most these products, nor were we provided with any sort of bounty. Within the commodity, there are chapter links. If you purchase something after clicking the link, nosotros will receive a modest commission. To know more about our ideals, you tin visit our full disclosure page. Thank you lot!



Primary Specifications

7Artisans Photoelectric 50mm f/i.8

  • Format:
    Fujifilm 10, Sony E, Canon EOS M, Micro Iv Thirds
  • Focal length: 50mm (75mm equivalent in 35mm terms on APS-C)
  • Lens configuration:6 elements in 5 groups
  • Lens coating:
    Multi-layer high permeability blanket
  • Angle of view: 32°
  • Minimum focusing altitude:
    50cm
  • Discontinuity blades: 12 rounded blades
  • Aperture range:
    1.viii to 16
  • Filter diameter: 52mm
  • Weather-sealing: Due north/A
  • Optical stabilisation:N/A
  • Dimensions:55 x 40mm
  • Weight: 180g

7Artisans Photoelectric
55mm f/ane.four

  • Format:
    Fujifilm X, Sony E, Canon EOS Chiliad, Micro Four Thirds
  • Focal length: 55mm (82.5mm equivalent in 35mm terms on APS-C)
  • Lens configuration:6 elements in five groups
  • Lens coating:
    Multi-layer high permeability coating
  • Angle of view: 28°
  • Minimum focusing distance:
    35cm
  • Discontinuity blades: 14 rounded blades
  • Aperture range:
    1.iv to 16
  • Filter diameter: 49mm
  • Weather-sealing: N/A
  • Optical stabilisation:Northward/A
  • Dimensions:53 x 55mm
  • Weight: 272g

Design and ease of use

If compact lenses are your loving cup of tea, you lot’ll be delighted with both the 50mm and 55mm. Admittedly the latter is longer and marginally heavier only y’all don’t really find the difference in one case the lenses are mounted on your mirrorless camera. In my instance, for case, I used both on i of the smallest Fujifilm X Series cameras, the X-T30, and didn’t experience whatever discomfort due to front-heaviness.


The length of both lenses increases every bit you turn the focus band from infinity to the closest focus deviation. You can come across how much they extend by looking at the images below.

Both appear to accept a full metallic build, although their respective mounts don’t expect as robust as other lenses I’ve tested in the by. The barrels themselves experience solid and weighty in the manus which I notice reassuring merely in that location isn’t any sort of weather-sealing.

On the front of both lenses is a filter thread (49mm on the 55mm, 52mm on the 50mm) to which you can adhere ND filters. The optics have supposedly been treated with a multi-layer coating to help reduce reflections simply it doesn’t do the all-time task as you’ll notice out further downward. Unfortunately neither comes with a lens hood.


1 attribute that disappointed me was the quality of the lens caps. They didn’t attach well from the moment I took them out of the box, and to brand matters worse, a small slice of plastic bankrupt off the 55mm’south cap, making information technology unusable. Very frustrating indeed!


As with all manual focus lenses, the two products characteristic a focus ring and aperture ring, both of which are knurled to better your grip as you plough them. On the 55mm, the focus ring is close to the mount and the aperture band is near the front element, which is reverse to how they are positioned on the 2nd lens. Operation of the 50mm is hindered somewhat by the close proximity of the aperture ring to the mount. Curiously the discontinuity value of f/11 is missing on both products.


The rings themselves are smooth and well-damped overall, though I have found there to be some elevate in the focusing of the 55mm. The aperture ring tin can as well be a little potent but this is a good thing since it rarely gets knocked out of place.

In the instance of both lenses, I would have preferred a longer throw altitude than a i/iii turn as it isn’t ever easy to fine-melody your focus point, especially at the fastest apertures. This is just me nitpicking however!

The 50mm has just a altitude calibration whereas the 55mm has both a depth of field and distance calibration to aid with pre-focusing and zone focusing. All the same because the lines are and so closely crowded together, the depth of field scale isn’t particularly easy to employ. Personally, I almost always opt for the X-T30’s on-screen magnification characteristic as it allows me to focus with absolute precision.


Optical quality – Through the lens

Sharpness

At a distance of around 10 meters, I found that the 55mm tends to offer marginally amend sharpness, particularly at the maximum apertures, f/2, f/2.8 and f/16. Between f/four and f/viii, it is more than difficult to tell them apart.

Peak functioning occurs between f/4 and f/8 with both lenses and the fastest apertures (up to f/2.8) are visibly softer than the mid-range apertures. Because f/eleven is excluded from the aperture markings, I haven’t included this value in my tests.

Maximum apertures

f/ii

f/2.8

f/four

f/five.6

f/8

f/16

Edge functioning appears to peak at betwixt f/v.6 and f/16 on the 55mm, whereas the 50mm is already proficient by f/four and continues to perform well beyond this value. Both are soft at the edges at their fastest values but the 55mm appears to suffer a little more.

Fastest apertures at the edge

f/8 at the border

At a close focus distance, the same pattern emerges. The 55mm is sharper than the 50mm at the fastest values and f/16 merely all the other values are very similar. Once again, the sharpest values are found betwixt f/four and f/8.

Fastest apertures

f/4

f/16


Bokeh and subject area separation

Insufficiently speaking, the 55mm f/1.4 has a more pleasant bokeh than the 50mm f/one.8. The transitions between out-of-focus areas are smoother and there are fewer harsh lines around the specular highlights, making the bokeh announced less decorated.

7Artisans 50mm at f/1.8
7Artisans 50mm at f/1.8
7Artisans 55mm at f/1.iv
7Artisans 50mm at f/2
7Artisans 50mm at f/two
7Artisans 55mm at f/2
7Artisans 55mm at f/two

If nosotros take a closer look at the bokeh balls, nosotros can see that those of the 55mm assume a cat’due south eye shape at the fastest aperture everywhere except the very centre of the frame.

7Artisans 55mm at f/ane.iv

The 50mm’s are rounder but noticeably smaller which makes sense given the slightly slower aperture and shorter focal length.

7Artisans 50mm at f/1.8

With either lens, it is easy to separate the subject field from the background as long every bit you use one of the fastest apertures and stand up adequately close to your subject. The background doesn’t melt abroad equally information technology would with a high-stop portrait lens just they both do a decent job considering the price subclass within which they fall.

50mm at f/one.8
55mm at f/one.4

Flare

Both lenses are prone to some flare and ghosting so information technology is best to avoid shooting into directly sunlight, especially since neither comes with a lens hood.

7Artisans 50mm

7Artisans 55mm


Chromatic aberration

The 55mm produces some noticeable chromatic abnormality at the fastest apertures, whereas the 50mm doesn’t seem to suffer at all.


Distortion and Vignetting

I didn’t come up across any relevant traces of barrel or pincushion distortion in my tests.

Vignetting is quite visible at the fastest apertures but mostly disappears by f/ii.8 on the 50mm and f/four on the 55mm. It is a footling more astringent on the 55mm, especially when used broad open.


Minimum focus altitude

The 55mm, in addition to having a slightly longer focal length, tin can also focus much closer than the 50mm (35cm vs 50cm). You tin can run into the difference by looking at the images below.


Field of view

The 50mm, with its shorter focal length, evidently offers a marginally wider field of view than the 55mm. You can see how much wider it is by comparing the two sample shots below.


Conclusion

The 50mm and 55mm were my introduction to 7Artisans products and, despite their flaws, my final verdict is much more positive than I always imagined given my previous experience with upkeep Chinese lenses.

The 50mm will ready you back simply $90, whereas the 55mm is a trivial more expensive at $120, merely both offer a skillful range of features including a fast maximum aperture, solid construction, and very good sharpness at f/2.8 and beyond. The quality isn’t at the level of, say, the XF 50mm f/2, but they are more than than enough if you lot are looking for a fast prime on which to practise manual focusing.

If I had to choose between these two lenses myself, I’d probably get for the 55mm for a few reasons: the bokeh is more pleasant, the maximum aperture is faster, it offers better sharpness at the fastest apertures, and it tin focus closer. Plus it isn’t as if yous’d be spending a whole lot more by choosing the 55mm since in that location is a mere $30 price deviation between them.

Choose the 7Artisans 50mm one.eight if yous:

  • truly cannot spare a penny
  • would rather piece of work with the traditional 50mm focal length
  • find information technology for fifty-fifty cheaper than $90

Choose the 7Artisans 55mm 1.4 if you:

  • want a beautiful bokeh
  • want the fastest discontinuity possible
  • are interested in being able to focus shut and capture details
  • desire better sharpness

Check the price of the 7Artisans 50mm 1.8 on Amazon | B&H Photo

Check the price of the 7Artisans 55mm 1.4 on Amazon | B&H Photograph


Sample Images

7Artisans 50mm f/ane.8

X-T30, 1/70s, f/5.6, ISO 160

X-T30, one/420s, f/2.8, ISO 160

X-T30, 1/3800s, f/2, ISO 160

X-T30, one/1700s, f/5.half-dozen, ISO 160

7Artisans 55mm f/i.iv

Ten-T30, 1/900s, f/1.four, ISO 160

X-T30, 1/320s, f/viii, ISO 160

X-T30, i/4000s, f/ane.4, ISO 200

X-T30, ane/1000s, f/4, ISO 160

Source: https://mirrorlesscomparison.com/x-mount-lenses/7artisans-50mm-f1-8-vs-55mm-f1-4/