NiSi 15mm F4 Asph vs Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR
NiSi 15mm F4 Asph vs Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR
When comparing Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR and NiSi 15mm F4 Asph, which one is better?
1. Lens Weight Comparison
Regarding the weight of the lenses, NiSi 15mm F4 Asph is the winner with a weight of 470 g compared to the 995 g that Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR weighs.
Winner: NiSi 15mm F4 Asph
Regarding weight: The weight of a lens is something you need to consider, since you have to carry it around on the camera as long as you're shooting. It adds to the total weight of your camera and it's important to keep the weight low if you get tired in your arms when taking photographs or filming.
2. Lens Mount Comparison
These two lenses use the same lens mount, the Fujifilm XF. This means that both lenses are compatible with cameras that use this mount.
Winner: Tied
Regarding lens mount: Popular lens mounts are Canon RF and EF, Micro Four Thirds and Nikon Z. Different lens mounts lets you connect different lenses to camera bodies, but some might not be compatible. This can be helped by using an adapter, like a Canon EF to RF adapter.
3. Largest Aperture Comparison
The Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR has the largest aperture of the two lenses at 2.8 compared to the 4 aperture of NiSi 15mm F4 Asph. This means that you get more light to your sensor using Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR wide open, and therefore it might be a better lens in dark situations.
Winner: Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR
Regarding largest aperture: A lower aperture number means that the widest aperture on the lens is larger. This means that more light will hit the sensor and also that the depth of field will be shallower, better separating your subject from the background.
4. Focus Distance Comparison
NiSi 15mm F4 Asph features a minimum focus distance of 20 cm while Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR has a minimum focus distance of 100 cm. Depending on your shooting style, the NiSi 15mm F4 Asph might be a better choice.
Winner: NiSi 15mm F4 Asph
Regarding minimum focus distance: The minimum focus distance of a lens is the smallest distance from the lens to the subject you want to be in focus; subjects closer than the lens' minimum focus distance will not be in focus. Whether or not this is important to you is up for you to decide, but some want to take close photos and videos and in those cases it's important to have a lens with a low minimum focus distance.
5. Lens Type Comparison
The NiSi 15mm F4 Asph is a Prime lens while the Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR is a Zoom lens. Whether or not a zoom lens or a prime lens is what you need, is up to you to decide; they both have their respective strengths and weaknesses.
Winner: Tied — It depends on your gear
Regarding type: There are two types of lenses; zoom lenses and prime lenses. Prime lenses have a fixed focal length and cannot be zoomed, while zoom lenses have a focal length range and can be zoomed in to get closer to the subject. Prime lenses are usually lighter, cheaper and let in more light. Zoom lenses are more versatile but are more expensive since they require a more advanced lens design.
6. Filter Thread Comparison
Winner: Tied
Regarding filter thread diameter: The filter thread diameter is the size of which the lens is compatible with screw-on filters, such as CPL, ND or IR filters. If you have several lenses of a certain size, it might be a good idea to keep the same filter thread size to make sure your filters work on all your lenses. If not, then you may buy step up rings to adapt from a certain diameter to the filter thread diameter of your other lenses.
Specifications
Full specifications table of NiSi 15mm F4 Asph and Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR:
| NiSi 15mm F4 Asph | Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR | |
 |  | |
| Brand | NiSi Cinema | Fujifilm |
| Weight | 470 g | 995 g |
| Lens Mount | Fujifilm XF | Fujifilm XF |
| Focal Length | 15 mm | 50 - 140 mm |
| Largest Aperture | 4 | 2.8 |
| Anamorphic | No | Missing |
| Minimum Focus Distance | 20 cm | 100 cm |
| Type | Prime | Zoom |
| Aperture Range | 4 - 22 | Missing |
| Filter Thread Diameter | 72 | 72 |
| Lens Groups | 10 | 16 |
| Lens Elements | 12 | 23 |
| Image Stabilization | No | Missing |
| Autofocus | Hayır | Missing |
| Weather Seal | Missing | Yes |
| Full Frame Coverage | Missing | No |
| Lens Hood Included | Missing | Yes |