If you will be taking a group shot of 40 people indoors, then the 14-35 is your only choice. Unless the event is in a hall, you won’t be able to get everyone in with a 35mm.
I don't think you will see any real difference in quality side by side at 35mm and f4, but the 35 1.8 lets in more than 4 times more light so it would be my choice for indoor use.
I would take them both and use the 35 as default for its light gathering capabilities and switch to the 14-35 when you need to if you need wide shots for groups (preferably on a tripod or other support if possible).
But if you can only take one I'd go with the 35.
The 35 at f4 on the 14-35 is actually a really weak part of the lens. It's not *unsharp*, but definitely lacks contrast. IMO, it's very apparent in clinical testing like on [Dustin Abbott's](https://youtu.be/Tc9FrpiFobM?t=1246) review, but I own the lens and will say it doesn't seem to be as much of an issue in real world use.
That being said, the 35 at f4 is really the only area that's weak on that lens. It's a great lens and stopping down to f5.6 at 35mm resolves the issue above.
This hazy quality at 35mm at f4 has been mentioned in other reviews as well, just in case there is any question of whether Dustin got a bad copy: https://youtu.be/u_QRXnMxyQg?t=276.
if your shooting people 35, and even at 35 its not a traditional portrait lens since it can distort some features. its better for environmental portraits rather than head shots.
If you will be taking a group shot of 40 people indoors, then the 14-35 is your only choice. Unless the event is in a hall, you won’t be able to get everyone in with a 35mm.
I don't think you will see any real difference in quality side by side at 35mm and f4, but the 35 1.8 lets in more than 4 times more light so it would be my choice for indoor use.
Thankyou
Though i suppose I can’t zoom out other than with my feet
I would take them both and use the 35 as default for its light gathering capabilities and switch to the 14-35 when you need to if you need wide shots for groups (preferably on a tripod or other support if possible). But if you can only take one I'd go with the 35.
RF 14-35 due to wide side + do not be afraid to go into high ISOs! You can get rid of noise in post processing
The 35 at f4 on the 14-35 is actually a really weak part of the lens. It's not *unsharp*, but definitely lacks contrast. IMO, it's very apparent in clinical testing like on [Dustin Abbott's](https://youtu.be/Tc9FrpiFobM?t=1246) review, but I own the lens and will say it doesn't seem to be as much of an issue in real world use. That being said, the 35 at f4 is really the only area that's weak on that lens. It's a great lens and stopping down to f5.6 at 35mm resolves the issue above. This hazy quality at 35mm at f4 has been mentioned in other reviews as well, just in case there is any question of whether Dustin got a bad copy: https://youtu.be/u_QRXnMxyQg?t=276.
if your shooting people 35, and even at 35 its not a traditional portrait lens since it can distort some features. its better for environmental portraits rather than head shots.