FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
p.1 #1FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
The new lens looks interesting:
https://www.bhphotovideo.com/c/product/1997421-REG/fujifilm_16981452_fujinon_400mm_f_4_5_r.html
I'm a bit surprised Fuji couldn't (or chose not to) have any independent reviewers review the lens - everything I could find on YouTube so far has been reviews by camera stores, most of which are terrible.
https://www.bhphotovideo.com/c/product/1997421-REG/fujifilm_16981452_fujinon_400mm_f_4_5_r.html
I'm a bit surprised Fuji couldn't (or chose not to) have any independent reviewers review the lens - everything I could find on YouTube so far has been reviews by camera stores, most of which are terrible.
Sep 04, 2026 at 09:40 AM
p.1 #2FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
Petapixel dropped their review last night minutes after the announcement. It looks like this lens was an extension of the development of the XF500.
Sep 04, 2026 at 10:34 AM
p.1 #3FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
This feels like a lens you won't see proper photos from till the more non partisaned reviewers get their hands on it.
Sep 04, 2026 at 12:48 PM
p.1 #4FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
A lens that maybe I'd like to have, and don't really need, probably a no for me and others.
Looks like they chopped the back off the XF 500 and put the mount there. Almost all of the lens is reported by some to be exactly the XF500, except the back elements. Given it is only 100gms lighter and maybe an inch shorter, seems right.
Be interesting for a while to read the questions and/or comparisons to the the XF500 and even the XF70-300 with and without a 1.4 tele...
Looks like they chopped the back off the XF 500 and put the mount there. Almost all of the lens is reported by some to be exactly the XF500, except the back elements. Given it is only 100gms lighter and maybe an inch shorter, seems right.
Be interesting for a while to read the questions and/or comparisons to the the XF500 and even the XF70-300 with and without a 1.4 tele...
Sep 04, 2026 at 04:30 PM
p.1 #5FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
RWNPhoto wrote:
Be interesting for a while to read the questions and/or comparisons to the the XF500 and even the XF70-300 with and without a 1.4 tele...
It absolutely smokes the 70-300mm, even without the sharpness loss from the TC. Pretty similar performance to the XF500 based on Fuji's MTF and similar optical design.
Nice to have such a lens in the line-up and hopefully it means good things for the next generation AF performance.
(I'd personally be more interested in a 250mm f2.8 with built-in TC though)
Be interesting for a while to read the questions and/or comparisons to the the XF500 and even the XF70-300 with and without a 1.4 tele...
It absolutely smokes the 70-300mm, even without the sharpness loss from the TC. Pretty similar performance to the XF500 based on Fuji's MTF and similar optical design.
Nice to have such a lens in the line-up and hopefully it means good things for the next generation AF performance.
(I'd personally be more interested in a 250mm f2.8 with built-in TC though)
Sep 06, 2026 at 10:20 AM
p.1 #7FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
I shoot with Sony 61MP FF bodies since 2019 and for the last year 2 Fuji 40MP bodies. In comparing the new Fuji XF 400mm f4.5 to the new Sony GM 400mm f4.5, I am quite surprised that a Sony GM lens is $500 less expensive ($2,698 vs. $3,199 @ B&H) and 1/2 pound lighter (2.2 vs. 2.74 Lbs) than the Fuji offering! I have 3 GM lenses and they are stunning, including the 100-400mm F4.5-5.6 GM since 2019. The new 400 f4.5 is almost a full pound less in weight than my GM zoom.
Both new lenses have linear motors (Sony 2 vs Fuji 1), WR construction, OIS and 95mm filter threads and the dimensions are almost identical, both are under 10 inches in length. The Sony has 23 elements vs 22 for Fuji. Two other Sony advantages are 11 vs 9 aperture blades and a removable vs fixed collar. Personally I like having a 400mm base lens, as for me that is normally plenty of reach where I photograph wildlife and jets at the Salton Sea. On the 61MP bodies a simple button push and I am at 600mm F/L with the in-camera crop mode, or I have a Sony A6700, which is an APSC crop body, though both will be at at 26MP. And I have the Sony1.4x tc too. I rarely ever need past 600mm with the GM zoom, but I can get there on Sony with both the crop and 1.4x tc. With the new Fuji I would have to buy a 1.4x tc (another $500) to get to 840mm, but I lose the 400mm F/L…..
My money is going to Sony in this case. The versatility of having a 400 mm base lens, the $500 and half pound weight savings are just too good to pass up.
Both new lenses have linear motors (Sony 2 vs Fuji 1), WR construction, OIS and 95mm filter threads and the dimensions are almost identical, both are under 10 inches in length. The Sony has 23 elements vs 22 for Fuji. Two other Sony advantages are 11 vs 9 aperture blades and a removable vs fixed collar. Personally I like having a 400mm base lens, as for me that is normally plenty of reach where I photograph wildlife and jets at the Salton Sea. On the 61MP bodies a simple button push and I am at 600mm F/L with the in-camera crop mode, or I have a Sony A6700, which is an APSC crop body, though both will be at at 26MP. And I have the Sony1.4x tc too. I rarely ever need past 600mm with the GM zoom, but I can get there on Sony with both the crop and 1.4x tc. With the new Fuji I would have to buy a 1.4x tc (another $500) to get to 840mm, but I lose the 400mm F/L…..
My money is going to Sony in this case. The versatility of having a 400 mm base lens, the $500 and half pound weight savings are just too good to pass up.
Sep 15, 2026 at 10:28 PM
p.1 #8FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
Dude nobody cares.
SpecFoto wrote:
I shoot with Sony 61MP FF bodies since 2019 and for the last year 2 Fuji 40MP bodies. In comparing the new Fuji XF 400mm f4.5 to the new Sony GM 400mm f4.5, I am quite surprised that a Sony GM lens is $500 less expensive ($2,698 vs. $3,199 @ B&H) and 1/2 pound lighter (2.2 vs. 2.74 Lbs) than the Fuji offering! I have 3 GM lenses and they are stunning, including the 100-400mm F4.5-5.6 GM since 2019. The new 400 f4.5 is almost a full pound less in weight than my GM zoom.
Both new lenses have linear motors...Show more →
SpecFoto wrote:
I shoot with Sony 61MP FF bodies since 2019 and for the last year 2 Fuji 40MP bodies. In comparing the new Fuji XF 400mm f4.5 to the new Sony GM 400mm f4.5, I am quite surprised that a Sony GM lens is $500 less expensive ($2,698 vs. $3,199 @ B&H) and 1/2 pound lighter (2.2 vs. 2.74 Lbs) than the Fuji offering! I have 3 GM lenses and they are stunning, including the 100-400mm F4.5-5.6 GM since 2019. The new 400 f4.5 is almost a full pound less in weight than my GM zoom.
Both new lenses have linear motors...Show more →
Sep 16, 2026 at 09:57 AM
p.1 #9FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
We need to see what iq is like, but on the specs Fuji needs a rethink, heavier and more expensive while covering a smaller format is not good news.
Gerry
Gerry
Sep 16, 2026 at 10:25 AM
p.1 #10FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
Its hard to imagine how the Sony is a half pound lighter and basically the same size envelope. Time will tell if they went too far or if its good design.
Sep 16, 2026 at 11:44 AM
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p.1 #11FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
Based on what I've seen regarding the size of the XF400 4.5 it seems more than bearable. The only thing I'd wish they'd refresh and put on a diet is the XF200F2. I'm not going to change systems over half a pound.
SGinNorcal wrote:
Its hard to imagine how the Sony is a half pound lighter and basically the same size envelope. Time will tell if they went too far or if its good design.
SGinNorcal wrote:
Its hard to imagine how the Sony is a half pound lighter and basically the same size envelope. Time will tell if they went too far or if its good design.
Sep 16, 2026 at 03:19 PM
p.1 #12FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
Look at the Sony maximum apature. This is why it is lighter
Sep 16, 2026 at 09:15 PM
p.1 #13FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
morris wrote:
Look at the Sony maximum apature. This is why it is lighter
Same, f4.5
Look at the Sony maximum apature. This is why it is lighter
Same, f4.5
Sep 16, 2026 at 09:23 PM
p.1 #14FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
SpecFoto wrote:
I shoot with Sony 61MP FF bodies since 2019 and for the last year 2 Fuji 40MP bodies. In comparing the new Fuji XF 400mm f4.5 to the new Sony GM 400mm f4.5, I am quite surprised that a Sony GM lens is $500 less expensive ($2,698 vs. $3,199 @ B&H) and 1/2 pound lighter (2.2 vs. 2.74 Lbs) than the Fuji offering! I have 3 GM lenses and they are stunning, including the 100-400mm F4.5-5.6 GM since 2019. The new 400 f4.5 is almost a full pound less in weight than my GM zoom.
Both new lenses have linear motors...Show more →
The new Sony 600mm and 400mm lenses seem exceptional. Personally I find the 400mm more interesting because of brighter max aperture. With 1.4x TC it could easily replace the too heavy and large 200-600G.
It is nice to see new Fujifilm tele lens, even though it does not seem very competitive compared to other systems. There are Fuji users who need this lens. However, the comparison to Sony is fairly brutal. Sony has also better bodies for typical wildlife and sports use cases.
I shoot with Sony 61MP FF bodies since 2019 and for the last year 2 Fuji 40MP bodies. In comparing the new Fuji XF 400mm f4.5 to the new Sony GM 400mm f4.5, I am quite surprised that a Sony GM lens is $500 less expensive ($2,698 vs. $3,199 @ B&H) and 1/2 pound lighter (2.2 vs. 2.74 Lbs) than the Fuji offering! I have 3 GM lenses and they are stunning, including the 100-400mm F4.5-5.6 GM since 2019. The new 400 f4.5 is almost a full pound less in weight than my GM zoom.
Both new lenses have linear motors...Show more →
The new Sony 600mm and 400mm lenses seem exceptional. Personally I find the 400mm more interesting because of brighter max aperture. With 1.4x TC it could easily replace the too heavy and large 200-600G.
It is nice to see new Fujifilm tele lens, even though it does not seem very competitive compared to other systems. There are Fuji users who need this lens. However, the comparison to Sony is fairly brutal. Sony has also better bodies for typical wildlife and sports use cases.
Sep 17, 2026 at 12:51 AM
p.1 #15FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
Kind of wish the Sony users would go back to the Sony boards and stop infesting the two other boards I frequent. I don't care about your new lenses and I'm tired of hearing about them and you guys using it as an excuse to brand bash everything else.
Sep 17, 2026 at 06:11 AM
p.1 #16FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
To be clear, my interest in the Sony is just from an engineering standpoint. I don't have any Sony bodies or plan to get them. But I am curious how far a lenses can be made lighter before build quality suffers. I thought the Fuji kind of light until this Sony and I'm wondering where a .5 lb would come from on a desigh that basically has all the same parts. Its not likely just plastic parts that didn't need to be metal. It seems to me that the glass must be thinner since there are a similar number of elements. The Sony will likely either drive other companies toward similar builds or become an example of stepping over the quality line.
Sep 17, 2026 at 10:07 AM
p.1 #17FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
"Dude nobody cares"
JadedWriter wrote:
Kind of wish the Sony users would go back to the Sony boards and stop infesting the two other boards I frequent. I don't care about your new lenses and I'm tired of hearing about them and you guys using it as an excuse to brand bash everything else.
JadedWriter wrote:
Kind of wish the Sony users would go back to the Sony boards and stop infesting the two other boards I frequent. I don't care about your new lenses and I'm tired of hearing about them and you guys using it as an excuse to brand bash everything else.
Sep 17, 2026 at 11:36 AM
p.1 #18FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
SGinNorcal wrote:
Same, f4.5
Correct, I was thinking about the new Sony 600mm f6.3.
Morris
morris wrote
Look at the Sony maximum apature. This is why it is lighterCorrect, I was thinking about the new Sony 600mm f6.3.
Morris
Sep 17, 2026 at 12:28 PM
p.1 #19FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
JadedWriter wrote:
Kind of wish the Sony users would go back to the Sony boards and stop infesting the two other boards I frequent. I don't care about your new lenses and I'm tired of hearing about them and you guys using it as an excuse to brand bash everything else.
It's a photography forum. Tons of cross over between brands (I shoot both brands too). Shouldn't be a problem for people to point out differences and preferences between gear options.
Kind of wish the Sony users would go back to the Sony boards and stop infesting the two other boards I frequent. I don't care about your new lenses and I'm tired of hearing about them and you guys using it as an excuse to brand bash everything else.
It's a photography forum. Tons of cross over between brands (I shoot both brands too). Shouldn't be a problem for people to point out differences and preferences between gear options.
Oct 04, 2026 at 03:09 PM
p.1 #20FUJIFILM XF 400mm f/4.5 R LM OIS WR Lens
I literally used to shoot 3 brands in unison. I'm an ex Sony user. You do not see me on that board being antagonistic to the extent that Sony users are about anything else not Sony. Everybody for the most part makes something very competent in this space there's no need to act like everything is hyper inferior because it's not Sony branded. I actually want this XF400 4.5, I'm still waiting for other people in here to buy this lens and show what it can do.
jakelindsay wrote:
It's a photography forum. Tons of cross over between brands (I shoot both brands too). Shouldn't be a problem for people to point out differences and preferences between gear options.
jakelindsay wrote:
JadedWriter wrote
Kind of wish the Sony users would go back to the Sony boards and stop infesting the two other boards I frequent. I don't care about your new lenses and I'm tired of hearing about them and you guys using it as an excuse to brand bash everything else.Oct 05, 2026 at 07:07 AM