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Hi All!
I’m planning on upgrading my camera pretty soon and going full frame. Since I’ve been shooting on a crop sensor camera in the past, I’m going to have to upgrade one of my lenses so that it’s compatible with full frame. I was wondering if anyone had any suggestions for a wide angle, Canon lens that is reasonable quality, but definitely on the affordable side. 🙂 The lens it’ll be replacing is the Tamron SP 17-50mm f/2.8. So, something with a similar focal length is preference. 🙂
Thanks!
A 24-70 or something similar would be what you will be looking for, as that will be the same effective focal length as what you are used to. There are a few possibilities. If you are used to f2.8 you will want something that goes to at least f4.0 on full-frame.
A few things that will affect the price:
– Image stabilisation (othewise known as IS/OS/VC depending on the brand)
– f2.8 or f4
– Canon brand or Sigma/Tamron/Tokina
– Lens qualityThankyou for your help, @dfrazer!
A 24-70 or something similar would be what you will be looking for, as that will be the same effective focal length as what you are used to
That’s good to know, thanks!
So, I’m looking at the Canon EF 24-105mm f/4L IS II USM Lens. https://www.bhphotovideo.com/c/product/1274709-REG/canon_ef_24_105mm_f_4l_is.html
What is 105 equivalent to on a crop sensor?
Hi @creative-click-photography!
What is 105 equivalent to on a crop sensor?
“Mounted on a cropped-frame EOS body, the EF 24-105mm will deliver a focal length equivalent to 38-168mm.”
Oh, I just was thinking about it, you’re probably looking for the other way around calculation. 🙂
From what I could collect, it will be the equivalent of a 15-75mm or so on a full frame.Thankyou, @ernestf-lloyd, for you help with that!
Oh, I just was thinking about it, you’re probably looking for the other way around calculation. 🙂
Haha! Glad you cleared that up. I was a bit confused. 😆 So it’s a relief to know that the first calculation was wrong! 🙂
Thankyou for your help, @dfrazer and @ernestf-lloyd, I purchased the Canon EF 24-105mm f/4L IS II USM lens last night! 🙂
That’s great! The 24-105mm f/4 is my go-to walk-around lens with full frame. 🙂
In addition to having a mid-range lens like the 24-105mm, I would highly suggest getting a good wide-angle lens to take advantage of the fact that you have full frame. I used the 17-40mm f/4 for a long time, until I was able to save up for (or more like, get a good deal on) a 16-35mm f/2.8. This is hands down my favorite lens.
You could also go wider, with true EF lenses that let you go out to 14mm or 11mm, but then you start to get some seriously noticeable fisheye distortion.
And not to confuse things, but if I understand @creative-click-photography’s question correctly (“What is 105 equivalent to on a crop sensor?”), @ernestf-lloyd first answer was actually correct (“a focal length equivalent to 38-168mm”). Here’s why:
The Tamron SP 17-50mm f/2.8
* True focal length (if used on a full frame sensor): 17-50mm
* Effective focal length (since it’s being used on a cropped sensor; what you’re used to): 27.2-80mm
* Like @dfrazer said, “A 24-70 or something similar” is what you would be used toCanon EF 24-105mm f/4L IS II USM
* True focal length (if used on a full frame sensor): 24-105mm
* Effective focal length (if used on a cropped sensor): 38.4-168mm
* In other words, 105mm on a full frame is equivalent to 168mm on a crop sensor, which was @ernestf-lloyd’s first answerSince you’re used to seeing 27.2mm when using a 17mm lens on a cropped sensor, you will see pretty much the same thing now (24mm) when using a 24mm lens on a full frame sensor.
And so you can figure out all this with any lens, to arrive at an “effective focal length”, just multiply the true focal length by 1.6 (for most situations). Regardless of whether or not the lens is designed for a full frame camera or cropped sensor camera, it will always be labeled with the true focal length.
Yeah, you’re right @jamesstaddon, but this is what I was trying to say.
Since I don’t have a full frame camera, when I see someone who does, saying that a photo was taken at 24mm on a full frame camera, it would take a (approximately) 15mm lens to replicate it on my crop sensor.
Or lets say you and I are standing next to each other before a scene. You with your full frame, and I with my crop sensor.
The cameras are set up right beside each other, and you have your 24-105mm lens(at 24mm) on your camera.
To get the same exact frame, what lens focal length lens would I need?
It would be about 15mm, right? No clue if that makes sense, or even if I’m correct, but am I on the right track?
Thanks!Wow Caitlin, that’s wonderful! Sounded like you did some thorough research through this whole process 🙂 Excited for you!
From what I could collect, it will be the equivalent of a 15-75mm or so on a full frame.
15×1.6=24mm
66×1.6=105mm (so to be technical it should be 15-66mm, not 15-75)But not on full-frame; that’s where you’re confused. 🙂 It needs to be 15-66mm on a crop sensor to be the equivalent of 24-105mm on a full-frame sensor.
The cameras are set up right beside each other, and you have your 24-105mm lens(at 24mm) on your camera.
To get the same exact frame, what lens focal length lens would I need?
It would be about 15mm, right?Yes, that’s correct. See the calculations above.
@jamesstaddon is right, but you have to take his calculations and work backwards to find the answer to the original question.Since you’re used to seeing 27.2mm when using a 17mm lens on a cropped sensor, you will see pretty much the same thing now (24mm) when using a 24mm lens on a full frame sensor.
I could re-phrase it this way (saying it backwards): “If you’re used to seeing 24mm with your FF camera, you’ll see pretty much the same now (24mm) when using a 15mm lens on a crop sensor.”
Does that make sense?
So if you’re standing beside @creative-click-photography with her new FF camera and 24-105mm lens, you would need the Canon 15-85mm lens on your crop-sensor camera to get equivalent results.
the EF-S 15-85mm f/3.5-5.6 IS USM from Canon is a 24-136mm-equivalent lens designed for APS-C-format DSLRs.
To put it another way, Caitlin is going from a 27-80mm lens (Tamron 17-50mm lens on a crop sensor) to a 24-105mm lens on a full frame. That’s a nice little upgrade! 3mm doesn’t sound like a whole lot, but it probably makes a bigger difference than you’d expect! Congratulations, @creative-click-photography!
Okay, that makes more sense, @buddingphotographer!
Thanks for the clarification!
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