Head-to-head · used lens buying intelligence
Fujifilm GF 45mm f/2.8 vs GF 50mm f/3.5: Which GFX Prime Is Better Used?
These two GFX medium-format primes are close in focal length but noticeably different in the bag. The GF 45mm offers a slightly wider view and a brighter f/2.8 maximum aperture. The GF 50mm is shorter and lighter, making a persuasive everyday carry choice. Whether that trade is worthwhile depends on how much you shoot indoors, how long you carry the camera and the condition-adjusted used price—not which lens appears newer or costs more.
Editorial research, not a claim of hands-on laboratory tests. We may earn a commission from qualifying retailer purchases at no extra cost to you.Which lens should you choose?
Choose the GF 45mm if you regularly photograph environmental portraits or dim interiors and value its wider field of view and f/2.8 opening. Choose the GF 50mm for a smaller walkaround GFX kit, especially if its used price and condition make it the more comfortable everyday choice.
GFX users prioritizing a slightly wider everyday field of view and the brighter f/2.8 maximum aperture.
Travel and street photographers wanting a shorter, lighter GFX prime with a natural everyday perspective.
Specifications that change the decision
Comparison at a glance
The specifications come from manufacturer documentation. They are provided for purchase decisions, not as invented sharpness, autofocus-speed or durability test scores.
| Consideration | Fujifilm GF 45mm f/2.8 R WR | Fujifilm GF 50mm f/3.5 R LM WR | What it means |
|---|---|---|---|
| Mount and image coverage | Fujifilm GF / GFX medium format | Fujifilm GF / GFX medium format | Both are native GFX lenses, not interchangeable with XF X-mount lenses. |
| Focal length / 35mm equivalent | 45mm / approximately 36mm | 50mm / approximately 40mm | The 45mm fits slightly more of an interior or environmental scene into the frame. |
| Maximum aperture | f/2.8 | f/3.5 | The 45mm offers about two-thirds of a stop more maximum aperture; that is useful but not a substitute for careful focusing. |
| Manufacturer weight | Approximately 490g | Approximately 335g | The 50mm saves about 155g, particularly noticeable in a compact travel kit. |
| Manufacturer length | Approximately 88mm | Approximately 48mm | The GF 50mm is markedly shorter and easier to pack. |
| Filter thread | 62mm | 62mm | Both use the same listed filter diameter. |
Purchasing options · verified when available
Compare current used listings
Prices below apply to the specific eligible retailer offers, not every grade or copy of the lens. KEH prices are withheld if their independently monitored feed is stale; eBay listings must meet the recent-refresh requirement. Confirm shipping, returns, accessories and final stock with the merchant.
FUJIFILM Fujinon GF 45mm f/2.8 R WR Autofocus Lens for G-Mount
Currently eligible used purchasing options
FUJIFILM Fujinon GF 50mm f/3.5 R LM WR Autofocus Lens for G-Mount
Currently eligible used purchasing options
Lowest tracked KEH offers: Fujifilm GF 45mm f/2.8 R WR: $747 (Bargain); Fujifilm GF 50mm f/3.5 R LM WR: $767 (Excellent). The listed-price difference is $20, but these may be different condition grades or include different accessories. It is not a like-for-like quality-adjusted saving. Check individual listing details and total checkout costs.
Editorial purchase analysis
Where the differences matter
A modest change in angle of view can matter indoors
On the GFX sensor the GF 45mm frames approximately like a 36mm lens on full frame, while GF 50mm resembles about 40mm. That is not a dramatic difference outdoors, but the extra width of the 45mm may prevent awkward backing into a wall during travel or environmental portrait work.
Neither lens is an ultra-wide specialist. If your main assignment is architectural interiors and you frequently need to fit an entire room into the picture, consider a wider GF lens instead of treating either prime as a full replacement for a wide zoom.
The real trade: aperture against size
Fujifilm specifies 490g and 88mm for the GF 45mm, compared with 335g and 48mm for the GF 50mm, excluding caps and hood. A GFX setup carried for hours may benefit from the shorter 50mm far more than a desk-bound studio setup.
The GF 45mm opens to f/2.8 while the GF 50mm reaches f/3.5. That can help with exposure or subject separation, but both need suitable technique when people move or depth of field becomes shallow. These specifications should not be misrepresented as a measured sharpness comparison.
How to decide whether a used premium is justified
Compare the actual KEH grade and supplied components instead of deciding from the cheapest listing alone. The GF 50mm commonly includes a dedicated hood and hood cap in Fujifilm's original kit, so missing accessories can affect real replacement costs. Verify any hood, front and rear caps and packaging with the seller for either lens.
Both are native G-mount lenses. Inspect optical clarity, aperture controls, autofocus, contacts and signs of accidental impact. If two units are differently graded, a price spread is not proof that one optical design is better. Judge condition and the total delivered cost before checkout.
Before you pay
Used-lens inspection checklist
- Confirm the GF GFX mount and exact model, not a Fujifilm XF lens.
- Inspect optics, aperture ring, autofocus and mount contacts.
- Compare hood, caps and any special accessories included in the exact listing.
- Compare the full delivered price, grade, return terms and portability rather than headline price alone.
The exact model, optical condition, accessories, grade, warranty and seller return terms matter more than a small headline price difference. Read our complete used-lens buying guide.
Sources, methodology and verification
Mirrorless Lens World Editorial Desk reviewed this comparison on October 14, 2026, using the manufacturer documentation below and the site's native product-family catalog. Retailer data is refreshed separately. No original bench measurements or personal handling tests are claimed.
- Fujifilm GF 45mm f/2.8 manufacturer specifications ↗
- Fujifilm GF 50mm f/3.5 manufacturer specifications ↗
See our editorial policy and affiliate disclosure.
Frequently asked buying questions
Is the GF 45mm dramatically wider than the GF 50mm?
No. Their approximate full-frame-equivalent fields of view are 36mm and 40mm. The difference is visible, especially indoors, but modest compared with a dedicated wide-angle lens.
Which GF prime is lighter?
Fujifilm lists the GF 50mm at approximately 335g versus 490g for GF 45mm, excluding caps and hoods.
Can I use these lenses on an X-T or X-H camera?
No. They are GF/GFX medium-format mount lenses, not native Fujifilm X-mount lenses.