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Fujinon GF45mmF2.8 R WR vs Fujinon GF55mmF1.7 R WR
Short answer
The Fujinon GF45mmF2.8 R WR (45mm) and Fujinon GF55mmF1.7 R WR (55mm) are both standard lenses for the Fujifilm GFX mount. The Fujinon GF55mmF1.7 R WR is the faster lens at f/1.7 against f/2.8 on the Fujinon GF45mmF2.8 R WR.
Fujinon GF45mmF2.8 R WR: 4 specs ahead
Side by side
| Fujinon GF45mmF2.8 R WR | Fujinon GF55mmF1.7 R WR | |
|---|---|---|
| Brand | Fujifilm | Fujifilm |
| Focal length | 45mm | 55mm |
| 35mm equivalent | 36mm | 43mm |
| Maximum aperture | f/2.8 | f/1.7 |
| Mount | Fujifilm G | Fujifilm G |
| Autofocus | Yes | Yes |
| Optical stabilisation | No | No |
| Weather resistant | Yes | Yes |
| Aperture ring | Yes | Yes |
| Macro | No | No |
| Linear motor | No | No |
| Minimum aperture | f/32 | f/22 |
| Aperture blades | — | 11 |
| Lens construction | 11 elements in 8 groups | 14 elements in 10 groups |
| Special elements | 1 aspherical, 2ED elements | 2 aspherical and 2 ED elements |
| Angle of view | 62.6° | 52.9° |
| Minimum focus | 0.45 m | 0.5 m |
| Maximum magnification | 0.14× | 0.17× |
| Weight | 490 g | 780 g |
| Diameter | ⌀84 mm | ⌀94.7 mm |
| Length | 88 mm | 99.3 mm |
| Filter thread | ⌀62 mm | ⌀77 mm |
Where each one is ahead
Reasons to choose the Fujinon GF45mmF2.8 R WR
- Wider view 36 mm vs 43 mm
- Minimum focus 0.45 m vs 0.5 m
- Weight 490 g vs 780 g
- Diameter ⌀84 mm vs ⌀94.7 mm
- Length 88 mm vs 99.3 mm
Reasons to choose the Fujinon GF55mmF1.7 R WR
- Longer reach 43 mm vs 36 mm
- Maximum aperture f/1.7 vs f/2.8
- Maximum magnification 0.17× vs 0.14×
Both have weather sealing and an aperture ring.
Neither has optical stabilisation, a macro design, and a linear focus motor.
Framing and reach
| Lens | Frames like | Horizontal view | Frame width at 10 m |
|---|---|---|---|
| Fujinon GF45mmF2.8 R WR | 36 mm | 51.9° | 9.7 m |
| Fujinon GF55mmF1.7 R WR | 43 mm | 43.4° | 8 m |
The Fujinon GF55mmF1.7 R WR gets 1.19× closer to the subject than the Fujinon GF45mmF2.8 R WR: whatever it points at fills 1.19× more of the frame edge to edge, or 1.4× more of its area. With the Fujinon GF45mmF2.8 R WR you would have to walk about 16% of the distance towards the subject to get the same picture — or crop it later, which leaves roughly 70% of the original pixels.
Angles and widths are calculated from focal length and sensor width, horizontally, on the native sensor of each mount.
Size and weight
- The Fujinon GF45mmF2.8 R WR is 290 g lighter than the Fujinon GF55mmF1.7 R WR, about 37% less.
- The Fujinon GF55mmF1.7 R WR is 11.3 mm longer.
- The Fujinon GF55mmF1.7 R WR is 10.7 mm wider.
- The Fujinon GF45mmF2.8 R WR takes ⌀62 mm filters and the Fujinon GF55mmF1.7 R WR ⌀77 mm, so filters are not shared.
What each one suits
| Fujinon GF45mmF2.8 R WR | Fujinon GF55mmF1.7 R WR | |
|---|---|---|
| Birds and wildlife | Poor | Poor |
| Sports | Poor | Poor |
| Portrait | Fair | Good |
| Travel | Very good | Good |
| Street | Very good | Very good |
| Weddings | Very good | Excellent |
| Walk around | Very good | Very good |
| Vlogging | Poor | Poor |
| Landscape | Excellent | Very good |
| Macro | Poor | Poor |
Scored from the published specifications — focal length, aperture, stabilisation, weather sealing and weight. Sharpness, bokeh and rendering are not in a spec sheet and are not scored here.
Cameras that take both
Both lenses fit every GFX body with interchangeable lenses — 7 in our list.
Which one to choose
Choose the Fujinon GF45mmF2.8 R WR if
- you want more in the frame. It starts at 36 mm equivalent, against 43 mm on the other lens — interiors, landscapes and groups at close range.
- weight matters to you. It is 290 g lighter, roughly 37% less to carry.
Choose the Fujinon GF55mmF1.7 R WR if
- low light is the priority. At f/1.7 it lets in 1.4 stops more than f/2.8 — faster shutter speeds indoors and softer backgrounds.
Everything above comes from published specifications. How sharp each lens is, how quickly it focuses and what its pictures look like are not in any spec sheet, so this comparison does not try to judge them.
Common questions
Which is lighter, the Fujinon GF45mmF2.8 R WR or the Fujinon GF55mmF1.7 R WR?
The Fujinon GF45mmF2.8 R WR, by 290 g — about 37% less.
Which is better in low light, the Fujinon GF45mmF2.8 R WR or the Fujinon GF55mmF1.7 R WR?
The Fujinon GF55mmF1.7 R WR. At f/1.7 against f/2.8 it gathers 1.4 stops more light, which matters without flash and for background blur. Stabilisation can offset some of that for still subjects, but not for moving ones.
Do the Fujinon GF45mmF2.8 R WR and Fujinon GF55mmF1.7 R WR use the same filters?
No. The Fujinon GF45mmF2.8 R WR takes ⌀62 mm and the Fujinon GF55mmF1.7 R WR ⌀77 mm. A step-up ring lets the smaller lens use the larger filters.
Will both lenses fit my camera?
Both use the Fujifilm G mount, so they fit any GFX camera with interchangeable lenses. They do not fit X Series bodies.
compare.faqTitle
Which one is lighter?
The Fujinon GF45mmF2.8 R WR, by 290 g (490 g against 780 g).
Which is better, the Fujinon GF45mmF2.8 R WR or the Fujinon GF55mmF1.7 R WR?
On measurable specs the Fujinon GF45mmF2.8 R WR leads, 4 wins against 2. That is a spec count, not a field test.
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Built from the specifications Fujifilm publishes.