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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
59 views

Why does the angle of view narrow as you zoom in? [duplicate]

Why does a 4mm lens have a wider angle of view than an 8mm lens ?
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2answers
105 views

How to focus manually with a Nikkor AF-S DX VR 50-200mm f/4-5.6G zoom lens?

I have a Nikon D3100, for which I just bought a Nikkor AF-S DX VR 50-200mm f/4-5.6G zoom lens. This is a CPU lens and works very nicely in auto-mode, i.e. when you let the camera set the focus. ...
2
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3answers
171 views

Variable focal length for macro lenses?

True macro lenses come in fixed focal length. Are there any macro lensens which have variable focal lengths? And please explain why yes or why not?
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1answer
53 views

Why is the external lens for my smartphone blurry when not at full zoom?

I've just bought an optical zoom lens for my Samsung S4 (I'm a web developer and blogger so I thought that it would be a handy tool for taking photo's when out and about without my main camera). The ...
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1answer
72 views

Does manual focus carry over to a different aperture, lens or focal length?

This is in the manual focus mode. If I focus my lens so that a certain object is clear and crisp, and then do one of the following, will I have to focus again? Change the aperture Switch to a ...
5
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4answers
259 views

Photo : inverse of miniature effect

I am very interested in the miniature effect widely used in photography. Which is to make large scenes such as if they were toys. I wonder if the opposite effect was, of giving a tiny object the ...
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3answers
316 views

Why image at 400mm is LARGER THAN DOUBLE of image at 200mm? (according to lens formula)

Like most of us, I thought it was yes. Until I really look into the Lens Equation: (1/subject distance) + (1/image distance) = (1/focal length) ...
2
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4answers
141 views

What justifies the double price of zoom lenses?

When I read the pros and cons of these two type of lenses, the lists looks like this: Pros of prime: Sharper images Lightweight Cheaper Bigger aperture (shallow dof, better in low light) Even ...
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3answers
57 views

zoom in vs cropping?

I take a photo by zooming in (optical) and cropping a photo without zoom. What would be the difference among the two? I know cropping reduces the photo quality but that's a minor issue for me.
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4answers
901 views

Why is my lens only somewhat sharp near the center and very blurry on the edges?

I bought a canon 50-250mm IS lens (for my T1i), maybe two years ago and haven't used it much, but whenever I do, I always regret using it. Pictures are blurry, the depth of field too shallow and so ...
2
votes
3answers
216 views

Why do two zoom lenses set to 200mm on the same camera produce different fields of view?

I've been testing out a Nikon 18-200mm F3.5-5.6 against a Nikon 55-300mm F4.5-5.6 I took two pictures of a door knob from an equal distance of about 3 meters away with the same Nikon d7100 DX camera ...
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0answers
143 views

How is it possible for bridge camera with 50x zoom to cost so little? [duplicate]

i state that i'm a completely beginner in the wonderful world of photography. Last year i bought a Fujifilm FinePix S2980 ...
0
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1answer
123 views

What's the practical difference in an image taken at focal length of 200mm vs 300mm? [duplicate]

I'm confused about the 200mm and the 300mm zoom ranges. I am looking for some examples of the same subject, in order to visualize the difference between 200mm and 300mm focal lengths. I want to ...
11
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2answers
1k views

Does a greater optical zoom range on a lens mean less image quality?

I have read that big optical zooms of let's say 10X do not produce excellent image quality. Is this true even nowadays, as there have been many technological improvements in this area? For example, ...
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1answer
97 views

Can a lightweight telephoto zoom lens fulfill my expectations of excellent image quality? [closed]

I am interested in purchasing a Canon, light, in terms of weight, telephoto zoom lens. I would like excellent image quality though. Are my expectations far from real? My future lens is purposed for a ...
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4answers
158 views

Looking for a telephoto zoom lens - Tamron, Canon or Sigma?

Are Tamron and Sigma trustworthy as compared to Canon? I am a beginner, so please help me. I have my kit lens Canon 18-55 mm. However I am looking for a telephoto zoom lens. For this reason a Canon ...
0
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1answer
492 views

Nikon 55-300 VR lens vs other Nikon zoom lens

I've Nikon D5100 with 18-55mm kit lens. Had the 55-200mm VR lens but sold it last year. I really enjoyed using the 55-200mm and had no complain. Now I am planning to buy another zoom lens and have ...
11
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4answers
766 views

Other than speed and weight, what advantages might a prime lens have over a zoom at the same focal length?

At the same focal length, apart from speed and maybe weight, what other advantages does a prime lens like the 50mm have over a zoom lens like the 24 - 70mm? To put it better, If I set my 24-70mm lens ...
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2answers
89 views

Is a Sigma AF 28-80 an useful addition to a Nikkor 35-105 macro?

I'm experimenting with photography and I'm on a budget: I'm using a Nikon D70 and I already have a Nikkor AF 35-105 f/3.5-4.5 macro and a 50 mm f/1.8 E (manual focus). Now I found a cheap Sigma AF ...
1
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1answer
361 views

Effective zoom of Sony 55-210 lens (e-mount for NEX series camera) [duplicate]

According to Sony's website this lens has a zoom factor of 3.8. I currently have an 18-55 lens that came with my NEX-3F that has a zoom factor of ~3.1. Since the 55-210 pics up where the 18-55 leaves ...
3
votes
4answers
753 views

How do I choose a zoom lens for Canon APS-C?

I know nothing about any of this. From my research, Canon's 70D looks like a good camera body for a retired (31 years) professional photographer (my dad) to "pick the camera back up" in the digital ...
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2answers
257 views

Why don't DSLR camera specifications include a zoom ratio (e.g. 3x zoom) like compact cameras?

For example, there is no mention of the zoom here. I'm guessing that it's specified in some other specification. If so, what do I look at and how do I compute the zoom from it? I've looked at a few ...
2
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1answer
685 views

Why is the Tamron 150-600mm lens so cheap? [closed]

The newly released Tamron 150-600mm f/5-6.3 SP Di VC USD seems to have garnered very positive reviews at a killer price ($1069). Tamron seems to have not compromised on optics (comparable image ...
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1answer
126 views

Am I correct that photos from the 16-50 lens won't be much better than cropping photos from the 35mm prime?

I own a Sony NEX-5R, with the Sony 35mm F1.8 prime and the Sigma 19mm F2.8 prime. I'm deciding whether to buy the Sony 16-50 power zoom. To make that decision, I need to decide whether cropping the ...
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2answers
91 views

Can extension tubes be used to zoom in in pinhole / zone plate photography?

In a recent question it was stated that You cannot change the focal length of the zone, it is fixed and a characteristic of the physical dimensions of the camera As far as I know, focal length ...
2
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3answers
440 views

Why is zoom avoided in large sensor compacts?

Why don't large sensor compacts (for low light shooting in moderate distances) with, let's say, 10x zoom exist? I'm primarily thinking about models such as Sony RX100 or Canon G1X that come in a ...
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0answers
94 views

Is it convenient to build a collection of prime lenses and forgo a zoom entirely? [duplicate]

I use a Sony NEX-5R, with a couple of prime lenses (19mm F2.8 Sigma and 28mm F1.8 Sony). I am trying to decide whether I should buy a longer prime lens, like the 60mm Sigma, or buy a zoom lens ...
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7answers
348 views

Should I postpone buying a zoom lens until I've learned to zoom with my feet?

After several years of shooting with my point-and-shoot, I upgraded to an NEX-5R, with two prime lenses — a 35mm f/1.8 and a 19mm f/2.8. I don't have a zoom lens, not even the kit lens. I've been ...
2
votes
1answer
385 views

What is equivalent focal lenght to Canon Sx50s at 50x zoom for a dslr lens?

I'm new at photography, and have a sony slt a37 camera. I was looking for telephoto lenses and got a Minolta 75-300mm f/4.5-5.6. Then I wondered what focal lenght the Canon sx50 has on its lens. I saw ...
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3answers
1k views

24-105 f4 vs 24-70 f2.8

I am looking for a secondary zoom lens for my Fashion Shoots. I'll be using the 50mm 1.4 as my primary go-to lens and the zoom for everything else. I was wondering which of those lenses perform better ...
4
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3answers
415 views

What are the disadvantages of super-zoom cameras compared to binoculars?

Maybe it is clear from my question that I don't know much about lenses, both on binoculars and super-zoom cameras, for example I don't know how can I compare the light that enters a binocular with a ...
0
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2answers
679 views

How does focal length relate to macro magnification? [duplicate]

I'm new to photography and would like to know a little more about zoom lens, The main thing I wonder about is this, I have a Fujifilm S4000 camera that claims to have 30x magnification. The new ...
1
vote
2answers
864 views

Canon Sharp Zoom Lens for Fashion Photography

I am looking to buy a Canon L lens, preferably a zoom to cover various ranges and focal points. I had a look on the new Canon 24-70f4L and it looks fantastically sharp. However, someone mentioned on ...
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2answers
349 views

How to fix Canon 17-40mm F4L loose zoom ring

I bought a used Canon 17-40mm F4L a while ago, and I just noticed it had the Zoom Ring kind of loose and also a lot of my pictures that were taken at the widest were 19mm instead of 17mm
11
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5answers
777 views

Why are 50mm no longer the default kit lens for prosumer SLRs?

Every time someone asks me for a kit recommendation I point them towards some sort of prime lens with a standard focal length. Similarly, almost anyone I talk to about the ideal budget kit swears that ...
5
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3answers
1k views

Best lens for taking pictures of surfers

I'm just trying to decide which new lens to get. I need to take surf and windsurf photos from onshore. Sometimes 300 mm is enough but there are many times they are too far away. I have a sigma 70-300 ...
0
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1answer
70 views

How does telephoto converter affect zoom range?

I have camera that has 10x zoom lens. The zoom range is a little short of what I need. I am looking into buying 2.2x telephoto converter. can you tell me how my zoom range will be affected. Will my ...
1
vote
3answers
249 views

How can I take a picture at 50mm with a Finepix s8200?

I have this camera. How do I take a picture at 50mm with zoom lens? Does this camera support zoom lens at 50mm?
0
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3answers
631 views

Wide angle lens for Canon Rebel T3i

I plan on going to Yosemite in December and am looking at getting a wide angle lens. I am thinking about investing in the Tamron AF 28-300 mm f3.5-6.3 XR Di LD VC Aspherical (IF) Macro Zoom lens. ...
1
vote
1answer
195 views

Nikon AF 70-300 mm lens zoom broken, can it be salvaged?

So I accidentally dropped my Nikkor AF 70-300 mm lens on the floor (yes, stupid). Now the zoom ring does not work. When I turn it, nothing happens. However, I can slide the lens back and forth, and ...
8
votes
4answers
779 views

Is it the same if you take a picture by setting 50mm in a 18-55mm lens and by using a 50mm prime lens?

Is it the same if you take a picture setting 50mm with a 18-55mm lens and a 50mm f/1.8 prime lens? Assuming that ISO, aperture, and shutter speed are the same, will both the lens give same results? I ...
3
votes
2answers
195 views

Canon Rebel T3 wont take the picture I want [duplicate]

I'm new to the camera and photography so I am sorry in advance... With both lenses the camera came with (18-55 and 75-300) if I use the camera's magnifier or the lenses zoom for close up pics from ...
4
votes
1answer
133 views

Do elements drift out of place with age in zoom lenses?

I have used a Nikon 18-200 for several years and probably have 30K or so photos taken with the lens. It appears that over time the lens is less consistent in the sharpness of the lens. I have heard ...
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vote
2answers
392 views

Why are my pictures noisy when zoomed at 1:1 in Lightroom 4?

I am shooting with Nikon D7000 and 18-105mm lens and RAW only not (RAW+JPEG). When I import my pics in Lightroom 4 and zoom it at 1:1 both in Library and develop modules I see a lot of noise, though ...
2
votes
2answers
384 views

Is trading Canon 18-135mm + 24mm lenses for a 17-40mm L or 70-200mm f/4 L a good decision?

I currently have a Canon 60D with an 18-135 lens and a 24 mm f/2.8 lens I hardly use. I really fancy the 24-105L IS (colour, sharpness, etc) and the 100-400L for the length (Freud would have something ...
4
votes
2answers
264 views

How do you get moon zoomed over foreground? [duplicate]

How does one get a picture similar to the one below with a crop sensor DSLR and using kit lens or 70-300mm lens without post-processing?
0
votes
0answers
49 views

Why does the zoom on my Canon T3i not work? [duplicate]

I have a new Canon T3i and was able to take and capture zoomed in photos with the lens that came with the camera(EF-S 18-55mm) as well as a Canon Zoom Lens EF 75-300mm 1:4-5.6. Now when I zoom in ...
0
votes
3answers
605 views

Why don't the zoom buttons work on my DSLR?

I am a newbie to the new camera I just bought. It is a Nikon D5200 it has the original lens that came on the camera a 18-55 lens on it. My question is when I turn the lens to the 55 and then push the ...
0
votes
1answer
84 views

How does the image quality compare between these lenses? [duplicate]

Want to buy a zoom lens for Nikon D5100 [now only have the kit lens 18-55mm]. I've selected these options AF Zoom-NIKK0R 70-300mm f/4-5.6G Tamron AF 70-300mm F/4-5.6 Di LD Macro Sigma 70-300mm ...
0
votes
2answers
194 views

How is zoom measured? [duplicate]

Zoom meaning the ability to make something distant appear closer. Consumer cameras are sold with a maximum zoom which is supposed to define how much closer. For example a camera might be 40x zoom, ...