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Photography question. Mirrorless (16 posts / 1,365 views)
Steveo_Hants
Posts: 538
Post #1 7 Jun 2020 20:10
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I have a Fuji X-E2 mirrorless camera and was wondering if the 23mm prime would be too wide for catch shots?
SamBarley
Posts: 2,210
Post #2 7 Jun 2020 20:30
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In reply to Post #1
It has a 1.5 crop factor, so multiply 1.5 with the lens mm and you will get the working mm that would be present on a full frame
duggs
Posts: 5,559
Post #3 7 Jun 2020 20:31
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In reply to Post #1
Personally no, not too wide. I like 17mm on my olympus which is almost the same field of view.

But I think most people would go for the 35mm for a bit more blur. Both are quite natural focal lengths, the 23 will make the fish look bigger, the 35 will blur the background a bit more. I think you'll be better trying both lengths out on the kit lens and making your own mind up
cjm cjm
Posts: 160
Post #4 7 Jun 2020 20:32
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In reply to Post #1
For my taste yes, better off with 35mm on a crop sensor camera. Try it and see though, depends if you mind a bit of perspective distortion- the fishes size looking slightly out of proportion to the anglers size/banana fingers etc. If you frame tighter (have the camera closer to the fish) it'll appear worse.
shane24 shane24
Posts: 904
Post #5 8 Jun 2020 21:51
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In reply to Post #3
The amount of background blur is not affected by the focal length it's the aperture that does this.
I've got the 35mm 1.4 Fuji Lens and find that perfect for catch shots on a crop sensor.
duggs
Posts: 5,559
Post #6 9 Jun 2020 05:29
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In reply to Post #5
The aperture controls depth of field.
focal length, distance and magnification have a massive impact on the amount of blur, more so than any aperture setting
shane24 shane24
Posts: 904
Post #7 9 Jun 2020 05:44
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In reply to Post #6
Sorry can you explain Depth of Field please?
duggs
Posts: 5,559
Post #8 9 Jun 2020 05:55
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In reply to Post #7
It's the area in sharp focus
But what happens to the area out of focus, and the speed of the transition, is affected by the things previously mentioned.
ken
Posts: 939
Post #9 9 Jun 2020 07:23
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In reply to Post #7
The focus distance is the distance between you and the subject you are photographing.

TheĀ  focus point is the object you are photographing.

A narrow depth of field only the focus point is in focus. (The object you are photographing)


A large depth of field more of the background is in focus and this depends on several factors.

Your F Stop, example f2.8 gives a much narrower DOF than f11 so the smaller F Stop the more blur in the background.
The distance between your focus point and the background.
So moving your focus point further away from bushes, trees etc will give more of a narrow DOF.

Also your own eye sight can affect this to a certain extent
It's all about practice.

The main points are a low F Stop and distance between your subject and the background.

I am not too good at explaining these things but hope this helps.
duggs
Posts: 5,559
Post #10 9 Jun 2020 10:31
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In reply to Post #9
All correct, but when we throw focal length into the mix it can alter perception. At f2. 8 and the same magnification you have the same depth of field at 10mm or 600mm, but at wide angles the background will be soft but legible, where it'll be obliterated at longer focal lengths just because the background and therfore the blur is magnified
ken
Posts: 939
Post #11 9 Jun 2020 10:41
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In reply to Post #10
I was trying to Keep it simple going on assumptions most people use either 35mm or 50mm prime lenses for trophy shots.
There's a lot to this photography malarkey.
duggs
Posts: 5,559
Post #12 9 Jun 2020 11:45
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In reply to Post #11
Indeed mate, whenever you try to simplify it someone will pull you up
Budice Budice
Posts: 336
Post #13 9 Jun 2020 12:44
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In reply to Post #11
This photography malarky can be pretty damn technical at times. I always get confused with F-stop numbers, like is it bigger the number the bigger the aperture and les DOF or the other way around?
ken
Posts: 939
Post #14 9 Jun 2020 12:52
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In reply to Post #13
So I hope I get this the right way around.

The higher the f-stop number, the smaller the aperture, so then less light enters the camera. The lower the f-stop number, the larger the aperture, the more light enters the camera.

So if you want a blurred background the lower the F stop number you can get will be best.

Think I am confusing myself now.

Edit: As lowering the F stop makes images darker in lower light there is a balance to find, The exposure triangle will help with this.
Aperture, ISO and Shutter speed.
Budice Budice
Posts: 336
Post #15 9 Jun 2020 12:54
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In reply to Post #14
Thanks mate
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