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Fujinon GF45mmF2.8 R WR vs Fujinon GF45-100mmF4 R LM OIS WR
Short answer
The Fujinon GF45mmF2.8 R WR (45mm) and Fujinon GF45-100mmF4 R LM OIS WR (45–100mm) are both standard lenses for the Fujifilm GFX mount. The Fujinon GF45mmF2.8 R WR is the faster lens at f/2.8 against f/4 on the Fujinon GF45-100mmF4 R LM OIS WR. Only the Fujinon GF45-100mmF4 R LM OIS WR has optical stabilisation.
Fujinon GF45mmF2.8 R WR: 6 specs ahead
Side by side
| Fujinon GF45mmF2.8 R WR | Fujinon GF45-100mmF4 R LM OIS WR | |
|---|---|---|
| Brand | Fujifilm | Fujifilm |
| Focal length | 45mm | 45–100mm |
| 35mm equivalent | 36mm | 36–79mm |
| Maximum aperture | f/2.8 | f/4 |
| Mount | Fujifilm G | Fujifilm G |
| Autofocus | Yes | Yes |
| Optical stabilisation | No | Yes |
| Weather resistant | Yes | Yes |
| Aperture ring | Yes | Yes |
| Macro | No | No |
| Linear motor | No | Yes |
| Minimum aperture | f/32 | f/32 |
| Lens construction | 11 elements in 8 groups | 16 elements in 12 groups |
| Special elements | 1 aspherical, 2ED elements | 3 aspherical, 1 ED and 1 superED elements |
| Angle of view | 62.6° | 62.6°-30.6° |
| Minimum focus | 0.45 m | 0.65 m |
| Maximum magnification | 0.14× | 0.13× |
| Weight | 490 g | 1005 g |
| Diameter | ⌀84 mm | ⌀93 mm |
| Length | 88 mm | 144.5–174.5 mm |
| Filter thread | ⌀62 mm | ⌀82 mm |
Where each one is ahead
Reasons to choose the Fujinon GF45mmF2.8 R WR
- Maximum aperture f/2.8 vs f/4
- Minimum focus 0.45 m vs 0.65 m
- Maximum magnification 0.14× vs 0.13×
- Weight 490 g vs 1005 g
- Diameter ⌀84 mm vs ⌀93 mm
- Length 88 mm vs 144.5–174.5 mm
Reasons to choose the Fujinon GF45-100mmF4 R LM OIS WR
- Longer reach 79 mm vs 36 mm
- Optical stabilisation Yes vs No
Both have weather sealing and an aperture ring.
Neither has a macro design.
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 GF45-100mmF4 R LM OIS WR | 36–79 mm | 51.9°–24.7° | 9.7–4.4 m |
The Fujinon GF45-100mmF4 R LM OIS WR gets 2.19× closer to the subject than the Fujinon GF45mmF2.8 R WR: whatever it points at fills 2.19× more of the frame edge to edge, or 4.8× more of its area. With the Fujinon GF45mmF2.8 R WR you would have to walk about 54% of the distance towards the subject to get the same picture — or crop it later, which leaves roughly 21% 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 515 g lighter than the Fujinon GF45-100mmF4 R LM OIS WR, about 51% less.
- The Fujinon GF45-100mmF4 R LM OIS WR is 56.5 mm longer.
- The Fujinon GF45-100mmF4 R LM OIS WR is 9 mm wider.
- The Fujinon GF45mmF2.8 R WR takes ⌀62 mm filters and the Fujinon GF45-100mmF4 R LM OIS WR ⌀82 mm, so filters are not shared.
What each one suits
| Fujinon GF45mmF2.8 R WR | Fujinon GF45-100mmF4 R LM OIS WR | |
|---|---|---|
| Birds and wildlife | Poor | Poor |
| Sports | Poor | Poor |
| Portrait | Fair | Average |
| Travel | Very good | Very good |
| Street | Very good | Average |
| Weddings | Very good | Very good |
| Walk around | Very good | Good |
| Vlogging | Poor | Fair |
| 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
- low light is the priority. At f/2.8 it lets in 1 stops more than f/4 — faster shutter speeds indoors and softer backgrounds.
- weight matters to you. It is 515 g lighter, roughly 51% less to carry.
Choose the Fujinon GF45-100mmF4 R LM OIS WR if
- your subject is far away. It magnifies 2.19× more, and walking closer is not always an option.
- your camera body is not stabilised. Of these two, only this lens has optical stabilisation.
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 GF45-100mmF4 R LM OIS WR?
The Fujinon GF45mmF2.8 R WR, by 515 g — about 51% less.
Which is better in low light, the Fujinon GF45mmF2.8 R WR or the Fujinon GF45-100mmF4 R LM OIS WR?
The Fujinon GF45mmF2.8 R WR. At f/2.8 against f/4 it gathers 1 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 GF45-100mmF4 R LM OIS WR use the same filters?
No. The Fujinon GF45mmF2.8 R WR takes ⌀62 mm and the Fujinon GF45-100mmF4 R LM OIS WR ⌀82 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 515 g (490 g against 1005 g).
Which is better, the Fujinon GF45mmF2.8 R WR or the Fujinon GF45-100mmF4 R LM OIS WR?
On measurable specs the Fujinon GF45mmF2.8 R WR leads, 6 wins against 1. That is a spec count, not a field test.
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Built from the specifications Fujifilm publishes.