According to your signature you've got a Sigma 12-24 and a Canon 70-200. Try out those two lenses set to 24mm and 70mm to get a feel for what each end of the 24-70's zoom range lets you see.

April 20, 2014, 03:52:48 PM

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**1**] 2if i am working in tight spaces or have to react fast i use the 24-70. if i am trying to get the look that only shooting wide open gives you i use the 35. sometimes i will have both mounted to two separate cameras. they are not superfluous to each other.

if you are a hobby shooter then i would say you probably don't need it. if you have professional needs, then i would say yes definitely get it.

I don't think this is considered "field of view", but I have a similar inquiry.

I am finding my 50mm is too close to my 40mm & 85mm... plus it is the hardest to use wide open (lowest keeper rate) so I may get rid of it.

What are the "zoom ratios" if that makes sense of these primes? IE, to get the same framing on my 40mm do I basically have to be 1/2 as close to the subject as with the 85mm?

I am trying to figure out what 3 or 4 fast primes might be of use to start collecting, to complement my F4 zooms (probably getting used 70-200mm F4 soon as well)

I was thinking 35-85-135 or something to that extent... no sure how much foot room/running back and forth that would require.

cheers,

I have used quite a few 50mm lenses over time in both classic and modern equivalents. I found that my 50mm f/1.4 was the least used lens in my bag despite it being, for many, their first choice. The 40mm f/2.8 pancake served that purpose just fine for me, and I prefer primes in the longer focal lengths (I own 85mm, 100mm, and 135mm primes). I do still have the classic 35mm and 50mm focal lengths covered both by a set of classic Takumar primes (low investment but big payoff if used properly) along with the excellent Tamron 24-70mm VC. I recommend the latter for those looking for a fast zoom in the normal range for a couple of reasons

1) Vibration Control - it works very well on the Tamron. I shot this shot handheld in obviously very cold temperatures, 40mm, and 1/10th of a second shutter speed. Even at 100% it is very sharp.

Sorry for borrowing the thread, if you'd like, I can proceed via PM.

/Pär

http://www.bhphotovideo.com/c/product/61607-REG/Visual_Departures_V35_35mm_Visualizer.html

No clue where you'd go to get one today, though...but, the good news is that you can make one yourself. Just get some cardboard. Cut out a rectangle the same size as your camera's sensor. Get a metric tape measure and attach it to the cardboard. You might want to scale the whole thing up, though....

Cheers,

b&

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I don't think this is considered "field of view", but I have a similar inquiry.The way primes work: Say you have taken a photo with a 35mm lens in landscape orientation. You then crop the sides of the photo to make it portrait orientation. The resulting cropped image will be the same as if you had put a 50mm lens on the camera and taken the original photo in portrait orientation. Another way to visualize the difference in framing is to imagine three equally spaced horizontal and vertical lines through the frame. The outermost "box" they create is the approximate framing of the next prime up. These tips generally apply to this sequence of primes:

I am finding my 50mm is too close to my 40mm & 85mm... plus it is the hardest to use wide open (lowest keeper rate) so I may get rid of it.

What are the "zoom ratios" if that makes sense of these primes? IE, to get the same framing on my 40mm do I basically have to be 1/2 as close to the subject as with the 85mm?

I am trying to figure out what 3 or 4 fast primes might be of use to start collecting, to complement my F4 zooms (probably getting used 70-200mm F4 soon as well)

I was thinking 35-85-135 or something to that extent... no sure how much foot room/running back and forth that would require.

cheers,

24 35 50 85 135 200

Notice each prime in the sequence is approx. 1.41x (a magic number all photographers should recognize) the focal length of the previous. This is not an accident! If you take the actual normal focal length of the 35mm format (43mm) and multiply it by 0.75x, you still end up with something close to 35mm. Multiply it (43mm) by 1.41x(2) and you get 85mm. Multiply 50mm by 1.41x and you get 70mm. So all the focal lengths used on lenses, both primes and zooms, aren't at all arbitrary, but designed to be as useful as possible in relation to "normal." Actually, 50mm is the most arbitrary / oddball focal length if you do the math!

At f/2.8 I found the zoom outperformed the 35L significantly. I didn't like the IQ of the 35L below f/2.8 anyway so I couldn't justify keeping both. You may love it in that range.

Why don't you rent the lens and test it out? It really is the only way to know if it is going to meet your needs...or purchase from somewhere with a reliable returns policy.

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