I’ve always been a 50mm user only. I’ve been looking at 35mm lately to get a bit wider but the difference 35mm and 50mm isn’t massive. I have been considering either going with a 28mm and a 50mm or a 35mm and a 75mm. What’s your favourite combo? I do like that 35mm cropped to square is the same aspect ratio as one of my all time favourites which is an 80mm on a 6x6
I've used the equivalent of a 35mm as my "standard" lens for decades . Usually combined with an 85mm (or equivalent), which I often found just a little too long, This was primarily for landscape and some event/reportage type photography, as well as some portraiture. Almost aways with two bodies, so I had a body for each lens.
I'm now using a 50mm (last few years) as my standard lens but still find the 35mm ideal for those occasions when the 50mm "just" isn't wide enough. I find this more useful than jumping from the 50mm to a "proper" wide angle.
I've also had 28mm, 24mm, 20mm and 18mm lenses (I still have a 20mm, but rarely use it). I'm not fond of pictures that "look" like they have been taken with a wide angle lens, and the 35mm works well for me.
For landscape, when I need something wide, I do a pano with the 35mm, which I prefer over switching to the 20mm. But still use the 20mm when a pano isn't suitable (or. I'm just being lazy). I wouldn't like to be without the 35mm, but a 28mm, or 24mm would get more use than the 20mm. However, I don't want to add more lenses, and the 20mm has the advantage of working in circumstances when the 35mm stands no chance of being adequate.
I also now have a 105mm macro rather than an 85mm, as I like close ups, but I find it both too long and too short for general landscape. Ideally, I would like something like a 75mm macro lens, (plus something a bit longer than 105mm).
It's not an easy choice, but it depends a lot on what type of photography you do, and how many lenses you are willing to carry (or can afford). I'm normally unwilling to carry more than three lenses (even though I sometimes carry five lenses: 20mm, 35mm 50mm, 105mm and 300mm).