Can vouch for this

ive been thinking about your question for a bit... honestly over the years ive learned that gear reliability is your biggest enemy at a wedding.

• get yourself the Fujifilm Fujinon XF 33mm f/1.4 R LM WR. its way more consistent in low light than any zoom and the autofocus is basically instant on the X-T5. plus the bokeh is just gorgeous for those intimate shots.
• stick to the Fujifilm Fujinon XF 50-140mm f/2.8 R LM OIS WR for the ceremony. its built like a tank and having that extra reach with stabilization is a total lifesaver when youre tired and shaky after a long day.

bump

Honestly, be careful with that 16-55mm for weddings. I had high hopes for it on my X-T5, but unfortunately the lack of OIS is a major red flag for me in dimly lit churches. Even with the IBIS in the body, I've had issues with micro-jitters when I'm tired and my hands aren't perfectly steady during a long 10-hour day. It's just not as good as I expected for those critical "kiss" moments where you absolutely can't afford a blurry shot. The 50-140mm is better because it has internal stabilization, but it's just so heavy. Carrying that around all day is a recipe for back pain and slower reaction times by the reception. I've seen too many people miss shots because they were fumbling with the weight or getting fatigued. My advice is to be cautious about relying solely on heavy zooms if you want to stay mobile and reliable. Always have a backup body ready to go too... if a complex zoom mechanism jams during the ceremony, you're basically toast. Happy to chat more if you need help narrowing it down tho.

Coming back to this... @Reply #4 - good point! about the reliability. i actually had a nightmare scenario at a barn wedding last summer where my main zoom just felt too sluggish in the shadows. i ended up switching to some Sigma glass mid-ceremony and it honestly saved the day. just get any of the fast Sigma primes made for the x-mount. they are surprisingly robust. you might want to consider how they handle colors tho. i find they can be a bit cooler than fuji glass, so make sure to watch your skin tones in post. i would suggest staying away from the super budget brands for professional work because you need that peace of mind when the bride is walking down the aisle. i guess my main warning is to avoid the really heavy stuff if youre doing 12-hour days... your wrists will thank you later. TL;DR: Go with Sigma. Their fast primes are incredible for the price and much more reliable than they used to be.

Here are my thoughts on the lenses you mentioned and an additional recommendation:

1. Fujinon XF 16-55mm F2.8: This is a versatile zoom lens that covers a wide to standard focal range, making it ideal for capturing various scenes at a wedding. The constant F2.8 aperture ensures excellent low-light performance and beautiful bokeh for portraits. It also offers fast and accurate autofocus, which is crucial for capturing fleeting moments. This lens is a solid choice for wedding photography.

2. Fujinon XF 50-140mm F2.8: This telephoto zoom lens is perfect for capturing intimate moments from a distance, such as the couple's exchanging vows or the first dance. The F2.8 aperture provides excellent subject separation and bokeh, making it ideal for portrait shots. It also has fast autofocus and built-in image stabilization, which is helpful in low-light situations. However, it may be less versatile than the 16-55mm for capturing wider scenes.

3. Fujinon XF 56mm F1.2: If you're looking for a prime lens that excels in portrait photography, the XF 56mm F1.2 is a fantastic choice. The wide F1.2 aperture creates stunningly beautiful bokeh and allows you to shoot in very low light conditions. This lens is incredibly sharp and produces excellent subject separation, making it perfect for bridal portraits and couple shots. However, it may not be as versatile as a zoom lens for capturing a wide range of scenes.

Ultimately, the best lens choice depends on your shooting style and preferences. If you want a versatile lens that can handle most situations, the XF 16-55mm F2.8 is an excellent choice. If you prioritize portrait shots and low-light performance, the XF 56mm F1.2 is hard to beat. The XF 50-140mm F2.8 is a great option if you need the extra reach for capturing intimate moments from a distance.

Regardless of which lens you choose, all three options offer excellent sharpness, fast autofocus, and beautiful bokeh, making them well-suited for wedding photography with the Fujifilm X-T5.