Spring 2012

Spring 2012
by ani

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Manual focus is the direct control of a camera/lens's focus by the photographer. This is generally accomplished by turning a focus ring which is mechanically coupled to the lens's focus, but some cameras without focus rings allow manual control over the autofocus motor.

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1answer
202 views

Canon 55-250, Rebel/XS, fails on *manual* focus?

I realize this is rather old hardware, at least as digital goes, but I'm hoping to hand it down to a friend as a starter kit. Every once in a while, my Digital Rebel XS will refuse to take a shot ...
6
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3answers
4k views

Can I determine if an image was captured using Manual or Auto mode?

Is there a way to find out if a picture (once taken) was taken in Manual vs. Auto mode? My daughter is in a photography class and we both have taken images with the same camera. I sometimes put it ...
2
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1answer
43 views

How can I use AF+MF on Fujinon lenses with hard stop focus rings?

Fujifilm cameras have an AF+MF mode which autofocuses when the shutter button is half-depressed, then lets you correct it using the focus ring. However, some Fuji focus rings have hard stops, so you ...
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2answers
47 views

Canon 6D not taking pics in AF

I just got a used Canon EOS 6D and I have a Tamron AF 28-75mm F/2.8 Macro Lens. What I have noticed is that when I try to take a picture and have the lens switched to AF mode it won't work if I use ...
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0answers
47 views

How do I get my image with a dSLR mounted on a telescope into focus? [duplicate]

I have a Nikon D5500 and use a GSO Newtonian telescope with an aperture of 8", focal length of 1200mm and focal ratio of f/6. I will be using a 32mm superview telephoto projection eyepiece which is ...
5
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3answers
7k views

Do I use the camera or lens switch to change between auto and manual focus?

I own Nikon D7000 with 18-105mm lens. I am bit confused how the auto focus and manual focus switching works, particularly with my gear. The confusing part is both the camera and lens have an A-M ...
0
votes
1answer
35 views

Front AF confirmation focus with manual lens?

Today I was testing my lenses for front focus/back focus (and while I was at it to test detail resolution at various aperture values), and found a really strange issue. From what I know, front/back ...
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2answers
80 views

How do I disable autofocus on my Nikon with a Sigma 10-20, which has no manual focus switch?

Just purchased a Sigma 10-20 f/4-5.6 DC HSM lens. In attempting to capture astrophotography, the lens continuously tries to find a focal point in the sky, and doesn't. So I attempt to turn it to ...
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2answers
91 views

Are focusing aids part of the lens or the body?

On a few old 35mm cameras I think I recall that depending on the lens I used, the focusing aids (split image rangefinder and microprisms) changed a bit. I now own a couple of Tni DSLRs (both with kit ...
41
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6answers
14k views

Why don't DSLRs come equipped with “classic” focusing screens (split prism, etc)?

I have a hard time manual focusing my Canon EOS 350D. Compared to the few higher spec DSLRs that I played with, and that have a pentaprism, my Rebel's (pentamirror) viewfinder feels crammed and ...
3
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2answers
146 views

Why does a manual focus lens have an autofocus motor?

Can someone explain to me why the Rokinon 24mm lens has a focus motor? Quoting from LensHero's page on the lens: Generic motor built-in focus motor From what I understand, only autofocus lenses ...
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3answers
231 views

How can I make it easier to focus with my manual f/1.4 lens without making it worse for slower lenses?

I have a Canon 17-40mm f/4 and a Samyang 35mm f/1.4 lens, and a Canon 6D. The problem is that when I'm trying to focus at f/1.4, the DOF in viewfinder is much wider than on the photo so it's much ...
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3answers
166 views

Manual focus prime lenses for Canon 60D [closed]

So I was hoping I could get some specific advice or tips for good quality & cheap (up to 200€) used vintage (1960-90's) manual focus prime lenses that are adaptable to Canons EF-S mount. I am ...
0
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2answers
94 views

How does aperture affect focus area? [duplicate]

How does the aperture affect the focus area? Here are some examples: With an 35mm(50mm)/f1.8 prime lens What f-value will bring a group of people standing in five rows into focus? What f-value will ...
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1answer
299 views

How to use Focus Magnification on Sony A7 with adapted lenses?

When I bought the Sony A7 I put a Kiwi adapter on it and tried using my old 24mm and 28-200 and both Focus Peaking and Focus Zoom still worked. Today with that same adapter I was looking at a Nikon 50 ...
7
votes
1answer
9k views

Why do I keep getting out of focus shots on manual focus?

I have a Nikon D3300. I recently switched over into complete manual mode (on the camera) with manual focus (on the lens). I find that the camera does not focus at all. All I get is out-of-focus shots. ...
4
votes
3answers
386 views

Is it possible to DIY adjust the focus ring distance scale of a lens?

I have a particular lens in mind, but is it generally possible to do this adjustment? Of course there are a lot of lenses that don't have any distance scale to begin with. Many lenses have the scale ...
21
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3answers
2k views

Why am I allowed to turn my focusing ring beyond infinity?

Is there a good reason why I can turn the focusing ring on my lenses beyond infinity mark on focusing scale? Following recent questions here and here, it sounds like a real usability issue. ...
1
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1answer
122 views

200mm Macro lens, get a new or old MF-only lens?

Context The Sony E-Mount series only has two official macro lens, the 30mm for APS-C and 90mm for full frame. I'd like to get a macro lens to play with at 200mm but given how Sony doesn't have any I'...
1
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3answers
134 views

Is it safe to manual focus with AF ON on Canon L lenses?

On other lenses, this is a dangerous move. Can I move the focus ring, with AF ON with an L lens? I heard that Canon L lenses (and others with an ultrasonic motor) can be in AF ON mode and I can move ...
0
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1answer
51 views

Will the focus confirmation dot still operate with non CPU lenses on a D3200?

I've seen some lenses that have an AE chip already in them (ex. the Rokinon 35mm f/1.4), but is it necessary to have a fully manual lens chipped in order for the focus confirmation dot to work? ( and ...
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2answers
322 views

Can I filter by autofocus in Lightroom?

Does Lightroom let me filter photos by whether they were manually focused? Or is this information not even stored in the ARW metadata? (I'm assuming they were not lost during DNG conversion in ...
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5answers
316 views

35mm prime lens — photo taken is not sharp in manual focus mode [closed]

I bought a 35mm 1.8 Nikon lens and am using this lens with D3200. I placed a ball on the floor and some 100 cm from the lens. I set the lens to Manual mode and aperture to 1.8, in Aperture Priority ...
3
votes
2answers
306 views

What can you do when your lens' focus ring becomes too loose?

One of my lenses I always carry (Olympus Pen lens, I fit it on a Sony NEX), has a focus ring that is becoming a bit too loose. Probably due to carrying it in a bag very often and taking a lot of ...
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2answers
156 views

How can I focus when my camera is on a tripod and none of the focus points line up?

Today I was shooting two persons with my camera (Canon 7D) on a tripod. One person, the one I wanted to be in focus, was composed so far out of the center that I don't have any focus point close to ...
0
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1answer
51 views

How do I manually focus my Nikon P520?

Can I manually focus a Nikon P520, and can I set infinity as well? I've looked at the manual settings and I cannot find the answer.
3
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1answer
167 views

Is it possible to make your own focus distance scale?

I'm using a Nikkor 18-105mm kit lens and it doesn't have a distance scale on its focus ring, is it possible to create your own distance scale by knowing the 0 and the infinity focusing points on the ...
2
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1answer
64 views

Does the type of lens adapter matter for manual focus?

Context I use a cheap adapter that has an Aperture Ring for the new Nikon G lens but also works for older lens as well. I use a Sony a6000 which has focus peaking and related. Question Assuming ...
4
votes
1answer
200 views

Best approach for accurate & fast focusing of fully manual lenses without live view. Focus chip, focusing screen or another approach?

I purchased the Samyang 24mm f1.4 for my 6D for specifically night photography. I won't go into how amazing this lens is at night... I've since discovered that this lens produces fabulous images in ...
2
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2answers
2k views

Canon 5D - Focus viewfinder indicators in Manual focus mode

On a Canon 5D MkIII, is there anyway to see the autofocus lock boxes on screen while manually focusing (showing the areas the camera detects as in focus)? This might just be an insane product of my ...
0
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1answer
214 views

Is manual focusing a viable option with the Canon 6D, 100-400 IS L II, and 1.4 Extender?

I am considering buying a Canon 1.4 extender to use with my 6D and 100-400 IS L II. I understand that AF will not function with this combination. I understand that lack of AF will limit me to static ...
1
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2answers
425 views

Manual focus working in AF Mode with an STM lens - is this intentional?

On my new Canon T6s/760d with 18-135 STM lens, I just noticed that in AF mode, when I hold the shutter button halfway, if I turn the focus ring on the lens, it does affect the focus! I preferred to ...
0
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2answers
159 views

What is a good focus point for street photography when using zone focusing?

For example, I am using Fuji X100T (35mm), and according to this video [1], Doug McKinlay suggested that turn to f8, and to focus at 10 feet distance, and so from 5 feet to infinity will be in focus, ...
0
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1answer
119 views

Technique to manually set aperture and focus for a low light scene during normally lit time of day?

I have a scenario that requires manually setting the aperture and focus on a lens attached to a machine vision camera on an outdoor scene (mirrorless camera with global shutter). I need to manually ...
0
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1answer
63 views

How do I work around a problem where my lens won't focus on distant objects?

I have a Pentax K10D with a 28mm lens that will not focus on distant objects. Will an extension tube solve this problem? I do not care about autofocus. Is one tube better than another for manual ...
2
votes
1answer
238 views

How does manual focus work using Leica lenses on other mirrorless cameras such as Fuji XPro1?

I used to own a Leica M4P, now I have gone digital with a Fuji X100. I love the X100 but the autofocus gives me so much trouble for street photography and its manual focus is terrible. I really ...
9
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5answers
9k views

What is the best auto-focus mode to use for bird photography?

Consider the image below: How would the shot be focused here? Using Auto-focus or manual? If there was a cluttered background, will auto focus detect the small bird and sharply focus on it?If manual ...
0
votes
2answers
445 views

How can I get crisp, clear product photography with everything in focus?

I'm guessing the answer to this question might be "the lens", but being a newbie in photography maybe that's too predictable... Alright, so I am shooting some handbags, and I am trying to replicate ...
1
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1answer
243 views

Why is my Fuji X camera stuck in manual focus?

I have a Fujifilm X series camera with one of the nice prime lenses, and it seems to be stuck in manual focus mode. The switch on the camera is on S, and I flipped it back and forth several times, but ...
0
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3answers
325 views

Focusing issues with Nikon 18-35mm f3.5-4.5D on D3200

I have a Nikon D3200 and I have used in the past year and half a 35mm f/1.8 G DX prime lens . I have rented several other lenses and I also have a 50mm 1.8G prime too (I'm sure that some of you will ...
5
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1answer
341 views

How exactly Is the focus distance of a Leica M lens mechanically transmitted to the body?

Basically speaking, when a camera focuses on something, it focuses on a certain distance. That means everything that is this distance away from the camera will be in focus and sharp in the image. ...
4
votes
3answers
1k views

What is the correct, standard EXIF metadata to add for Rokinon 8mm fisheye lenses?

I own a Rokinon 8mm Ultra Wide Angle f/3.5 Fisheye Lens for Canon EF Mount. This is a manual lens not electrically connect to the Canon 60D body I use it with. With exiftool I want to add the correct ...
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7answers
4k views

Is using live view for accurate manual focusing really better?

Commonly I hear of landscape photographers who rely on live view to focus now. The process I use is: Tripod mount the camera Switch lens to manual focus Enter Live View Live View zoom to maximum ...
2
votes
1answer
1k views

Canon EOS SL1 - Manual focus stopped working

I recently purchased a Canon EOS Rebel DSLR SL1. My 18-55 mm lens shoots amazingly, and I have been using it in auto and manual focus. About a week ago, my manual focus randomly stopped working. The ...
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5answers
667 views

How to precisely focus in self-portraiture with very wide aperture?

I've been trying to take some self-portraits, but I often have to struggle with the auto/manual focus. I don't miss by a lot, but I really want sharp focus in the eyes. I'm using a 50mm/1.8 around 2/...
2
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1answer
81 views

5D Autofocus - disable tracking after lock?

I recently got a 5Dmk3 and it's been a really fun toy so far. I'm coming from a Canon 7D, so I'm trying to adjust to the much more complicated autofocus system. I've read the manual and looked around ...
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0answers
284 views

Fujifilm S1: Manual focus does nothing?

The best example of my problem is when using any level of optical zoom with autofocus. When I press the AF button before shooting, it will scan as it does and hit the sweet focus spot where everything ...
9
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2answers
1k views

How does ground glass work when focussing?

To use ground glass, I turn the focusing ring on my lens until the image becomes clear on the glass. But what is it about the glass that makes this work? What are the physics involved?
0
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1answer
187 views

How do prime lens allow variance of focal length when focusing? [duplicate]

If the definition of prime lens says that their focal length is fixed, then how come you can still alter the focal length when focusing? (either MF or AF)
1
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1answer
150 views

Can the Canon EF-M camera use the focus by wire lenses?

The old Canon film camera EF-M did not have auto focus ability and was manual focus only. Does it support the focus by wire lenses in the EOS line? Does it even have any electrical connectors in the ...