- Messages
- 6,253
- Name
- Sean
- Edit My Images
- Yes
I'm not exactly new to photography, and have researched pretty much everything a fair bit, but there are still a few things I'm not quite sure about.
First up, lens f/stops. I'm talking about the number in the name. For example, the 'Canon EF 24-105mm f/4 L IS' lens compared to the 'Canon EF 50mm f/1.2 L USM' lens. I'm assuming, the lower number, the more light the lens can take in, which means you can use higher shutter speeds and aperture because the lens is more sensitive to light/the lens works better in low light conditions?
Second, if I got the above correct, what do f/stops mean when, say for example the 'Canon EF 28-135mm f/3.5-5.6 IS USM' lens, with a 'varying f/stop' number?
I'm assuming at 28mm the f/stop is 3.5 whereas at 135mm the f/stop is 5.6?
First up, lens f/stops. I'm talking about the number in the name. For example, the 'Canon EF 24-105mm f/4 L IS' lens compared to the 'Canon EF 50mm f/1.2 L USM' lens. I'm assuming, the lower number, the more light the lens can take in, which means you can use higher shutter speeds and aperture because the lens is more sensitive to light/the lens works better in low light conditions?
Second, if I got the above correct, what do f/stops mean when, say for example the 'Canon EF 28-135mm f/3.5-5.6 IS USM' lens, with a 'varying f/stop' number?
I'm assuming at 28mm the f/stop is 3.5 whereas at 135mm the f/stop is 5.6?