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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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1answer
130 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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1answer
50 views

Cheapest zoom telephoto for Fuji X systems? [closed]

I have a Fujifilm XT-20, with 3 prime lenses (Rokinon 12mm, Fuji 35mm and Kamlan 50mm). I'd like to get a zoom telephoto lens without spending a fortune... I know there is the 100-400mm Fujinon, but ...
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2answers
133 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
126 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
61 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.
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2answers
92 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 ...
22
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5answers
5k 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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4answers
3k views

How do manufacturers get to high (83x) zoom levels on hybrid cameras?

Obviously the biggest hybrid zoom on the market (Nikon Coolpix P900 I think) does not range from actual 24 mm to 2 meters in physical length, but what kind of optical systems do manufacturers use to ...
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2answers
2k views

How to zoom with Canon 77D with Canon 50mm 1.4 lens

I've just bought this camera and the lens, and I feel so silly; I don't know how to zoom. Do you know how? When I turn it on it seems to be zoomed and I would like to zoom out.
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1answer
187 views

42.8mm on Nikon COOLPIX P7700 > 55mm on Canon EOS 77D? [duplicate]

I have a Nikon COOLPIX P7700 and because it has been losing function due to wear and tear after 6 years, and I wanted a better zoom range for wildlife, I decided to get a Canon 77D DSLR so I could get ...
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0answers
33 views

Why does the contrast change when you zoom out of an image on Preview on mac [closed]

If you click on an image file in finder on the mac and press the space bar, Preview will preview the photo for you. After doing this, you can zoom in on the image (by pinching two fingers apart from ...
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3answers
99 views

What's the most important factor to get clear images using high telezoom on moving subject?

So let's assume I've got the focus nailed down, so my focus is the best possible. I have a single subject I'm shooting at very high telezoom on Panasonic TZ-80, using 60x or 120x zoom, so the camera ...
5
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3answers
140 views

Digital zoom: Is the exposure computed using the zoomed frame?

I am trying to focus on the differences between digital zoom and cropping an image afterwards. This is discussed in detailed here: Is digital zoom really useful? focused on the compression ...
1
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1answer
160 views

What causes this pattern? [closed]

What causes the pattern seen on the image (it is a still from a video)? This doesn't seem to be a Moiré. It seems to be largely related to the camera or the filter (the pattern is fixed and aligned ...
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5answers
612 views

Layman's guide to making distant things clearer - add on lenses/monoculars for mobile phones

I'm completely at sea with magnification, crop, zoom and telephoto, despite reading various info. I think it's because I'm not terribly scientific! All I would like to know is, if I am shooting ...
2
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3answers
179 views

I'm on a budget of around $200-250. What is a good lens for photographing wildlife?

I have a Nikon D3000. I love photographing all wildlife, but especially bald eagles. However, I can't zoom in nearly enough with my 18-55mm lens that came with the camera. Would the 70/300 be enough? ...
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3answers
59 views

What camera should I buy as a first year animation student? [closed]

I am a first year animation student and my question isn’t very specific but I just need some advice on buying a camera as I want to make the right decision. First of all, I’m a beginner in ...
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9answers
3k views

Is replacing all my Fujifilm gear with this Canon zoom lens an upgrade?

I'm a hobby photographer. I like taking portraits, which I often do at festivals and conventions. I usually take the following gear: Fujifilm X-T2 (an APS-C sensor mirrorless camera), a 16-55mm f/2.8 (...
3
votes
3answers
353 views

Why can't my compact digital camera focus when applying 8x zoom?

I have a compact digital camera which is Canon IXUS 165. The specification is in this link. I bought it in June 2016. It has 8x Optical Zoom. Just now I was zooming 8x on something, and when I tried ...
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1answer
52 views

Need a zoom lens [closed]

What is best close up lens for Nikon D5300 that is not too expensive and not too heavy? I have a Nikon Nikkor AF-S 55-200mm VR lens and I can not zoom in correctly.
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2answers
92 views

Should we zoom or not zoom while taking night sky photo [closed]

I was trying to capture Northern lights during my recent trip to Iceland, although i couldn't capture them well but i was left wondering if i should zoom towards night sky while clicking photos or not ...
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2answers
296 views

My Tamron 100-400mm f/4.5-6.3 jumps to f/6.7 beyond 360mm

I got a brand new lens today: a Tamron 100-400mm F/4.5-6.3 Di VC USD. I have mounted it on my Nikon D80. This lens seems to have a problem with its aperture: At 100mm, I can operate from f/4.5 ...
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3answers
240 views

Upgrading to Nikon 18-300 zoom

I've got two lenses for my Nikon DSLR (the D5100) - the 18-55 zoom it came with, and a 55-300 f4.5-5.6 zoom that I really enjoy for wildlife. The problem I'm running into, is that I often find my ...
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3answers
548 views

Is Tamron AF 70-300mm F/4-5.6 Di LD better than Nikon AF-S DX Nikkor 55-300 mm 1:4,5-5,6G ED VR?

I am new to photography. I got a chance to test both the lenses (Tamron AF 70-300mm F/4-5.6 Di LD and Nikon AF-S DX Nikkor 55-300 mm 1:4,5-5,6G ED VR). The Nikon lens has VR and hence with full zoom, ...
2
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1answer
188 views

How to enlarge an object by x-times with an optical zoom

My camera employs a 30x optical zoom, with focal length ('f' from here on out): f = 4.3 mm to 129 mm. If I am at 1x and I see an object as 100 pixels, to enlarge it to 150 pixels, can I set the zoom ...
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0answers
65 views

What are the upper and lower limits of torque to safely operate a geared cinema lens?

I'm prototyping a stepper motor drive for cinema lenses. The idea is to mount a 32 pitch spur gear on a stepper motor shaft with an encoder. That assembly will turn the focus, iris, or zoom ring gears ...
49
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3answers
7k views

Why do photo cameras lose focus when you zoom, when movie or TV cameras keep it?

In photo cameras, i.e. (D)SLRs, digital cameras, etc., when you focus on an object and then you zoom (in or out), the object gets out of focus. On the other hand, in movie or TV cameras, the focus is ...
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1answer
164 views

Universal solution for wide focus length DSLR camera in 2017

Please help me to find the right solution for my needs. I'm looking for a high quality camera, it should be modern, capable to record high-quality videos in FullHD (4K not needed at all). In the ...
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1answer
152 views

Is an inexpensive used Pentax lens worth buying for mounting on a Canon Rebel T5i? [duplicate]

I have found an smc Pentax-A 25-135mm f/4 at a local thrift, for $60. Everything seems to be working great, and it's without scratches. Is this a great deal, or not so much? Is this a good lens? I ...
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3answers
99 views

Zoom or Approaching [duplicate]

I know that capturing a near object and capturing the same object with going apart with zoom makes a lot of sense But I'm confused what change does it do to the picture?? Could anyone help me in this?...
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1answer
211 views

Logan Paul camera?

Ok in today's vlog thats 23 August from India , He had posted a vlog about capturing Eclipse . Where he purchased a 14k dollars worth lens. But the lens didn't work with his camera ??? Why did ...
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3answers
445 views

First full frame with Canon 24-105 f4 kit or 70-200 f2.8

I am interested in wedding photography. I currently have a 50mm f1.8 lens. I am going to purchase my first full-frame camera soon. I can only afford one lens right now, so I need to decide between ...
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3answers
219 views

How do I choose a lens for my first DSLR to replicate the capabilities of my bridge camera?

I am planning to migrate from my Sony DSC-HX1 bridge camera (28-560mm) to Canon EOS 800D. Now I had learned that 'x' based zoom values are not applicable to DSLR's and I am lost with all the ...
2
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1answer
214 views

Why is my Nikon 18-300 lens not focusing at higher focal lengths?

I found a similar question about the 18-200. Someone suggested screwing the front element tighter. Is it possible to do the same with the 18-300? My problem happens at 200-300mm. I am not sure how to ...
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10answers
3k views

How should I approach deer to photograph them?

I currently live in suburbia and there's a large field behind my house. Since yesterday I've noticed 3-4 deer grazing there. I've approached them three times at varying times of day and haven't been ...
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5answers
235 views

How does optical and digital zoom relate to the “W” and “T” zoom controls on my camera?

If W means "Wide Angle" and T means "Telephoto", then how does optical and digital zoom relate? Does W and T fulfill both zooming options?
4
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5answers
1k views

Is it exactly true that doubling the focal length makes everything look twice as big?

I had come to the conclusion that if one lens has twice the focal length of another, that means it makes everything look twice as big. Conversely, if a lens has half the focal length, you see twice as ...
11
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5answers
2k views

How much zoom would make a camera suitable for imaging railcar seals from 100 feet away?

I'm an engineer, and we have a need to take pictures of railcar seals (steel ties as pictured) from on top of the building. What I need is a camera with sufficient zoom so we can clearly see whether ...
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2answers
554 views

Which is the better lens: Canon 28-80 USM I, 28-70 f/3.5-4.5 II or 28-105 f/3.5-4.5 II?

I own a Canon 6D and I need a general purpose zoom but I can't afford to buy an L lens, even an used one. I've read here about 28-80 USM I and 28-70 f/3.5-4.5 II. The author claims that those lenses ...
2
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1answer
140 views

Dark Image at longer focal (aviation photography)

I am trying to practice aviation photography, I have a Nikon D3100 and AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED. When I take a shot at a longer focal length the subject (aircraft) is dark and I ...
4
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1answer
878 views

30x Optical Zoom vs. 30x Magnification on Binoculars? [duplicate]

I just recently learned that 30x Optical Zoom on a Camera and 30x Magnification on Binoculars are different things. Suppose if I have got 30x50 Binoculars, then what would be its equivalent number of ...
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3answers
503 views

Is there an EASY way to get geotagging with a compact camera without GPS?

Is there a compact camera with decent zoom (30x) with which it would be easy to have the photos geotagged? What is the best practice to have both good picture quality (use a compact camera, not ...
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3answers
325 views

Which telephoto lens to choose? [closed]

I have a Canon EOS 50D and 3 lenses: Canon EF-S 18-135mm f/3.5-5.6 IS Tamron SP AF 90mm F/2.8 Di Macro Canon EF-S 10-22mm f/3.5-4.5 USM I want a telephoto lens to take pics of small animals in ...
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3answers
57 views

Canon 18 - 55 IS STM lens noisey

I've recently brought a brand new canon lens from a website and when I record videos and use the zoom, you can really hear it during playback? Is this normal? Here's a link to a video I've recorded: ...
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2answers
190 views

What are the technical limitations that prevent lens manufacturers from producing 70-300mm f2.8?

70-300 f2.8 lenses don't seem to exist. What are the reasons behind that?
6
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3answers
2k views

Can I convert binocular zoom to equivalent lens focal length?

I read another SE post that shows how focal lengths can be converted to optical magnification, but it isn't clear to me how it would work the other way around. My binoculars are adjustable from x10 to ...
0
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2answers
593 views

Does Zooming the lens Changes the Aperture? [duplicate]

Hello Photographic Lovers, Aperture is what the power of lens to open and close so as to control the light. So When we Zoom in the lens and see the far objects, then it changes the aperture. So ...
4
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1answer
189 views

Will primes become rarer in the 24-70mm range for DSLRs like they did for the 70-200mm?

The trinity 14-24mm, 24-70mm and 70-200mm zooms are lens that professionals rely upon for the convenience of a zoom but a good quality similar to a prime. A lot of development has gone into these as ...
3
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1answer
258 views

How is the continuous (optical) zoom feature realised in the new iPhone 7 using two lenses

The new iPhone 7 Plus has a dual camera system with one 28mm and one 56mm. Usually in smartphones where the camera is compact, you do not have real optical zoom. So how is the zoom feature, which ...
1
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1answer
288 views

Zoom, Aperture size and focal length [duplicate]

I am very new to photography and have been working my way through a few books and magazines trying to learn how to use my camera more effectively. I keep getting stuck on the differences between the ...