Questions tagged [zoom]

An optical 'zoom' or 'variable focal length' lens is one that has a range of focal lengths at which it can operate. "Digital zoom" is a technology which simulates optical zoom by cropping the image.

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2
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3answers
169 views

focal length to aperture relation while zooming - is my russian lens lying to me?

I have this old soviet/russian "Granit" 80-200mm lens, connected to my Canon 550d DSLR through M42 adapter. I also have "modern" kit 18-55mm lens. What I don't get is how aperture ...
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4answers
249 views

Does a lens with this zoom range exist?

I want to buy a zoom lens for a DSLR but I want its Focal length to start from a small number (18, 55, 100, 200) and end to a very large number (1300, 2600) so it can see near and far. Also I want it ...
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2answers
96 views

Why isn't “maximum zoom” consistently stated for compact cameras?

Why can't maximum zoom (ie the change in size of an object on screen) consistently be stated on compact cameras? I am aware of the complications with focal length and lens size but I am only ...
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2answers
115 views

Mystery Scale on Hanimex Zoom Lens

I’m a bit of a newbie, and I’ve just bought a zoom lens for my OM10. It's a Hanimex One-Touch Zoom Lens 80-200mm F4.5 Macro It’s arrived and I’m trying to understand the scales on the lens. I can ...
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3answers
1k views

Backyard wildlife zoom question factoring distance

I'm quite new to photograhpy/videography and I only have a limited budget of $800.00US for a lens. As per Kai's request allow me to pose the question centered around the discussion I initiated: Which ...
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1answer
160 views

Why does my Nikon DX AF-S Nikkor 55-200mm seem to be more zoomed in at 200mm than my AF-S Nikkor 18-200mm? [duplicate]

Looking for some input experience here. I have a Nikon D3300 and the following lenses: 18-55 VR kit 55-200 VR 18-200 VR 35mm fixed I primarily use the 18-200 lens out of convenience but was doing ...
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1answer
111 views

Sigma 70-300mm macro or nikon 55-200mm vr ii

I currently have a Nikon d3200 and am trying to decide between these two lenses. I understand the sigma can only manual focus on my camera. Im mostly looking to shoot wildlife , landscape or other far ...
2
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5answers
240 views

Magnification percentage meaning

How do I convert from the percent magnification that many photo editing apps use to times magnification? For example, if I have taken a photo at 30mm and then zoom to 100% percent in Lightroom, what ...
4
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3answers
425 views

How to reduce shake at high focal lengths {2600mm-3900mm with adapters} when on a tripod?

I have a Nikon DIGITAL DSLR 650 1300mm zoom lens. In honour of this, I bought a Zomei tripod which is of good quality but even so, the slightest breath of wind makes the lens shake, and at such high ...
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3answers
202 views

Variable Aperture Zoom Lens Dials

I'm new to photography and recently won a bid on a Nikon D70 with a Nikon AF Nikkor 24-120mm 1:35-5.6D lens. I know the lens has a variable aperture. What I can't figure out is what the top sets of ...
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2answers
336 views

Why can't my Nikon P900 zoom like the demo videos I've seen?

I have a Nikon P900 and I am somehow disappointed by the zoom level. It is obviously better than my other camera (Panasonic FZ-50, comparison done by making photos of the moon), but still... (please ...
4
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1answer
152 views

Darktable: zoom impacts exposure?

I just have observed a strange behavior in Darktable (Fedora 32, darktable-3.2.1-1.fc32.x86_64): when looking at the image with 'fit screen', it is much darker than the 100% view. After saving the ...
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10answers
5k views

How can I magnify ≤1mm objects onto a display for under $200?

Question updated/clarified I'm looking to perform feature identification on small tick/bug/mite-like creatures approximately 0.3mm to 1mm in size. I'd prefer to be able to project magnified images ...
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2answers
116 views

Cause of bokeh with dark ring and bright center

This is a detail from a photo that I took with a Fujifilm XF55-200mm lens. The lens was zoomed all the way to 200mm, and the aperture was wide open—f4.8. I wonder whether somebody knows the cause of ...
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2answers
305 views

low element count primes render better than high element count zooms? Which image is which?

I was told that prime lenses with low element counts have the potential to produce better colors and greater contrast than lenses with many many elements inside. I was told primes mostly 'render' ...
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2answers
109 views

Zoom lenses for wildlife at 600 meters

I spend alot of time driving back roads for work I just got a rebel 7 and I'm trying to find a lense for taking picture of bears and other animals from about 600 meters and have a fairly close up ...
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5answers
249 views

Can digital zoom affect focus

I was always under the impression that digital zoom has little use since the same thing can be achieved on a computer afterwards by cropping. I recently purchased a point & shoot digital camera ...
7
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3answers
760 views

Should I crop photos from a prime instead of using a zoom lens?

I wonder whether using a compact, bright, fixed focal lens instead of a large zoom lens will yield comparable results in terms of light gathering ability and resolution. I am not interested in ...
2
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3answers
384 views

How to get sharper photos with a kit lens when in low light conditions?

I took my new Nikon D7500 out yesterday and its my first DSLR. I would like to get some thoughts on shooting sharp photos in low light conditions with it. I was shooting after sunset but before ...
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1answer
276 views

Why does aperture change when I zoom my lens even in manual mode? [duplicate]

I have my Nikon D7500 set to Manual Mode. I can change the shutter speed and it maintains the setting. When I change the aperture, the setting is not maintained and varies depending on the zoom of ...
0
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1answer
66 views

Olloclip Macro 21x lens for iPhone able to shoot objects far away?

Can Olloclip Macro 21x lens for iPhone be used for shooting objects far away? (note: amateur in photography and lenses seeking help from experts)
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2answers
233 views

What digital camera should I buy in order to use a Nikon Zoom-Nikkor 35-105mm f/:3.5-4.5 lens?

I have a Nikon Zoom-Nikkor 35-105MM 1:3.5-4.5 Lens f=35 and I'd like to know: which digital camera is compatible with this zoom? thank you lots, Giorgia
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4answers
2k views

Which lens has the same capability of lens mounted in Nikon P1000?

I am a beginner in photography and I have a Nikon D3400. I was impressed with the super zoom of Nikon P1000. But, I came into a conclusion to buy a tele lens rather than going for P1000. P1000 has a ...
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3answers
241 views

What affects DOF more…distance to subject or focal length?

Say I want shoot a butterfly. My goal is to make sure the butterfly fills the frame. I can do this in two ways...I can use zoom or I can simply move the camera closer to the subject. Which will ...
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3answers
273 views

Why is view on camera different from actual output viewed on phone?

I have a Nikon D5600. When I use telephoto lens (70-300 mm) for bird photography, on full zoom the bird does appear clear and near, but when the actual photo is produced, the bird appears far. When ...
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4answers
152 views

Why is zoom provided in Tokina 11-16mm?

I wonder what's the use of providing zoom in the Tokina 11-16mm. Why not make it an 11mm prime lens instead? It would contain less elements, so will produce sharper images. Also at such wide angle, ...
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3answers
166 views

What lens would I need to photograph a very distant cathedral dome?

I want to be able to photograph the dome of St Paul's cathedral from King Henry's Mound in Richmond Park. Would a telephoto or zoom lens be the best, what focal length/zoom would be the best for ...
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2answers
2k views

How to fix zoom creep in Canon EF 24-105mm F/4L IS USM lens? [duplicate]

I have the first version of the Canon EF 24-105mm F/4L IS USM lens. It has annoying zoom creep. If I walk around with this lens, with the camera hanging from my neck, occasionally the zoom ...
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1answer
572 views

How to soften a tight zoom ring?

After a fall, our Nikon Af-S 24-70mm 2.8G ED zoom ring got quite tight. It's specially hard to rotate it between 50 and 70mm. We can't send it to repair service, as we need it daily and have no ...
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2answers
1k views

Is the Canon EF 24-105mm f/4L IS USM lens parfocal or not?

I read a review of the Canon EF 24-105mm f/4L IS USM lens. It said: Focus shifts while zooming. Zoom before you focus. Surprised by this (I don't recall ever seeing the focus scale shift while ...
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1answer
223 views

What units are used for zoom and focus distance for the varifocal Dahua camera? [closed]

I've been working with an industrial Dahua camera and since I do not have a full model of how the camera works (and because I'm a complete newbie to cameras in general), a few elements are still ...
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2answers
591 views

New camera won't focus while zoomed in, old one focuses perfectly. Why? [duplicate]

I take photos of computer hardware for sale on ebay. I had been borrowing a camera for photos (Olympus SZ-16) and the camera will be able to focus while very zoomed in to a device while relatively ...
4
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3answers
183 views

How commonly do constant-aperture manual zooms actually influence the aperture mechanically when zooming?

I have seen a few examples of constant aperture zooms (eg a 28-100mm f/4 Ricoh.) in the secondhand markets where the aperture appears to be not fully open (visibly non-round hole) at some zoom ...
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3answers
133 views

What lens do I need on a P&S camera for photographing faces?

I'm just someone who enjoys photography, but I'm not a photographer. I don't know a lot, so please try and keep things simple. I've been using a Fujifilm Finepix S9200, a bridge camera with a 24-...
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2answers
628 views

How to achieve photo with no blurred background [duplicate]

When zooming I want to keep background not blurred. Is this even possible? I will have multiple cameras pointing at one object from different distances can I get a flat picture on all of the cammeras ...
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2answers
341 views

What is the theoretical relation between zoom length and guide number for a flash?

The point of a guide number is to specify the relation between aperture number and distance. For zoomable flashes there are still extensive tables considering ISO number and zoom length. The ...
3
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2answers
494 views

Why is there an underexposed “shadow” along edge of frame on 35mm film when using my 70-210mm lens?

I shot a few rolls on Minolta XG-M with different lenses and some images have an underexposed edge. It take a while for me to go through a roll, to the point of me forgetting which lens/settings I ...
2
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2answers
127 views

Better Circular Polarizer for Sigma 150-500mm APO HSM [duplicate]

I recently used my Sigma 150-500 lens to shoot my son surfing. I was using a circular polarizer. The shots all appear out of focus even though focus was good and depth of field was good, even though ...
8
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2answers
399 views

Are there any lens hoods with zoom-moveable petals?

On a wide angle lens hood petals should be open wide enough not to obscure field of view; on a telephoto lens narrow petals would block sun better if shooting close to the sun. I imagine it would be ...
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1answer
700 views

How is a lens's listed minimum focus distance affected by zoom?

I have a 55-210 zoom lens, and the specs show that the minimum focus distance is 1m. Does that distance remain constant if I use the zoom? Or does that change it? Thanks in advance!
9
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2answers
1k views

What does “AUTO-ZOOM” mean on my Zuiko lens?

"Auto-zoom" is written on my Zuiko 35~70mm lens, is this a name of some lens technology?
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4answers
203 views

What lens should a new photographer consider starting with? (prime vs zoom, focal length, etc)

It seems like the generally recommended practice is to start with a prime and build some skill with something like a 35 or 50mm lens first before moving on. If I'm primarily going to photograph my ...
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2answers
282 views

200mm on 48MP body (with 2x digital zoom) vs 400mm on 24MP body

Is the "quality" from a 200mm lens on 48MP body (after a 2x digital zoom) going to be same as one on 400mm on 24MP body? Assuming the same apperture
2
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1answer
332 views

Why does my superzoom lens sometimes miss focus?

I've got a Nikon D7500 with the AF-S DX 18-300mm zoom, a combination I love. I do a lot of outdoor photography and find myself switching between wide angle and telephoto repeatedly as different shots ...
2
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2answers
6k views

What is the difference between the Nikon 55-300 DX and 70-300 DX lenses?

I am a new photographer and investigating entry-level Nikon telephoto lenses for possible purchase. (I already have the 18-55 kit lens.) I am confused about their telephoto zoom offerings. If I want ...
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2answers
202 views

If X fills the frame more than Y, does that mean X is closer to me in real life?

I saw this flat earther guy using the optical zoom of his Nikon P900 to zoom into a stop sign 1000ft away, then zooming into the sun. The gentleman was able to get a greater portion of his frame ...
5
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2answers
337 views

What is this odd brushstroke-like blur with my Canon EF 100-400mm f/4.5-5.6 L IS II?

I am shooting a lot of low light sports up in the north and I have noticed a lot of back focusing issues that I mostly blamed on myself with a 5D Mark IV and EF 100-400mm f/4.5-5.6 L IS II. But ...
2
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1answer
1k views

How do I zoom in and out with Olympus Digital PEN series cameras?

There is a dial with a magnifier icon, but it doesn’t do the zooming. The lens doesn’t have zooming, it only has focus.
3
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2answers
642 views

What factors affect the detail and clarity of a photo taken by a digital camera?

By clarity, I mean to preserve as much detail as possible when zoomed in. For example, I take a photo of my cat 10 meters away, and I want to zoom in and able to see each single fur as clear as ...
24
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5answers
8k views

Why doesn't the picture become darker the more you zoom in?

As your lens's focal length gets longer, fewer photons pass through the lens to hit the mirror/sensor. Why don't you see darkening when you look into the viewfinder and zoom in with a zoom lens, and ...

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