Questions tagged [lens]

A photographic lens is used to focus the light onto film or a digital sensor. Many cameras have interchangeable lens systems, allowing the photographer to choose the type of lens to use.

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2answers
97 views

STM Lenses working for Canon Rebel T7/ Canon 2000D?

I want to buy a lens for my new camera and everyone says that STM or USM Lenses are the best choices but also they said STM and USM lenses will not work for Canon Rebel T7/ 2000D ! is this correct?
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2answers
160 views

Is it normal for EF 24-105/4L IS to autofocus when switched to manual focus?

I'm using a Canon 6D mark II. I recently got a Canon EF 24-105mm f/4L. I wanted to try using manual focus, so I switched the lens to manual focus, but it keeps auto focusing when I half press shutter ...
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2answers
86 views

Question regarding name of style of photo

So, I am currently building a website and it's partially photogenic, therefore, I need really clean photos. I was looking for a style that would fit what kind of photos express who I am and what I am ...
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1answer
298 views

What are the disadvantages of the new Viltrox 85mm f/1.8 versus Sony's current 85mm offerings?

The Viltrox 85mm f/1.8 is a relatively new lens and there don't seem to be any comparisons between it and the 85mm lineup that Sony currently offers. I get that's it's a manual focus lens, but I am ...
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1answer
84 views

what does f 22 do if lens only shuts down to 6.3 [duplicate]

what happens when I dial in an f stop of 22 on my old canon xti using a 200mm telephoto 3.5 - 6.3?
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2answers
917 views

How do apertures which seem too large to physically fit work? [duplicate]

A 400mm f4.0 lens is supposed to have a maximum aperture diameter of 10cm. Looking at such a lens they don't seem big enough to fit that kind of aperture including all the mechanics for control inside ...
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2answers
74 views

Canon Rebel T5 DSCR zoom lens recommendation [closed]

I am going on an Antartica cruise and want to take long distance photos from my balcony and want a zoom lens that won't kill my budget (can't afford those $2,000 lens'). Would appreciate any ...
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1answer
97 views

How to identify the original manufacturer of lenses branded Soligor?

There are Soligor-branded lenses for which I wish to identify the manufacturer. I have read that Soligor encoded the manufacturer in the serial number, so in principle, I just need to find a list of ...
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1answer
74 views

What is the difference between the various image-stabilized Canon 18-55mm lenses? [duplicate]

I'm looking at buying a new 18-55mm lens as the one that came with my 4000D doesn't have image stabilisation, which I really need. It seems like canon have made many EF-S lenses over time that all ...
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1answer
66 views

What lenses other than MD can I use with a Minolta XG-7 camera with an adapter?

I recently bought a Minolta xg-7 camera at a thrift store. The store only had the body available but it was so cheap that I thought I could by a lens separately. I have found a few MD mount lenses ...
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3answers
136 views

Canon EF 200mm f/2.8L II USM or Canon EF-S 18-200mm f/3.5-5.6 IS?

I need a recommendation. I want to buy a telephoto lens and I don't know a lot about photography. I am looking at these 2 options: Canon EF 200mm f/2.8L II USM: Fixed lens. Fast (f/2.8). Effective ...
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0answers
123 views

Using Nikon PS-4 bellows to copy 35mm negs

I want to digitize my old b&w negs, and have an old PS-4 bellows unit to use on my Nikon D5200, an SLR with a DX format sensor. My PS-4 manual predates DX, and shows a table with lenses from 20mm ...
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1answer
97 views

Is it a fungus or something else?

the following picture is from my dad's Konica Hexanon f/1.7. Would you call the white layer a fungus, haze, dust or something different? Thanks
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2answers
118 views

Travelling, Need a new lens [closed]

I am travelling at the end of this year so I want to use this time to save for a lens. I have the Canon 5D MKIII and when I stopped photography for a while due to other commitments I sold my other ...
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1answer
59 views

What is cause of spots in image taken with dusty Nikkor AF-S DX 18-200mm ED VR II? [duplicate]

Dust or pollen inside this lens is common problem so I finally removed the front element and cleaned it, but even after this procedure I have the very same specks in a video as before. So I guess it's ...
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7answers
709 views

Is Canon 50mm f/1.2 with Canon EOS 80D suitable for portraits, landscapes, travel/nightlife photography?

I'm purchasing my first DSLR camera (Canon 80D) in a few weeks. I want to use it mostly for portraits, landscapes, travel/nightlife shots. I've come across the Canon EF 50mm f/1.2L, and wanted to know ...
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3answers
101 views

Does field of view change for different lens model for the same focal length?

I am using two lenses - Tamron 75-250mm F/3.8-4.5 Model 104A and AF-P DX NIKKOR 70-300mm. When shot with lenses set to 250mm of focal length, the field of view for the Tamron lens is greater than the ...
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4answers
141 views

Looking for a travel lens for Canon 5D MKIII [closed]

I've decided to change my style of photography and I'm more interested in doing travel photography and landscape. Im stuck between getting the 16-35 f4 IS and the 24-70 F2.8 MKII. Which one should I ...
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2answers
106 views

How can a lens produce better (or worse) colors than another one?

So I was looking the Lomography Lomogon 32/2.5 Lens, which looks pretty cool. However in the copy they claim that it produces images with great color. Now if the lens glass is slightly tinted, then ...
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1answer
101 views

Stuck lens off - scared to reattach another lens

I managed to get my 50mm lens off my camera (it was stuck) and it looks like one of the lens pins was broken. I'm scared to reattach another lens. Was it the camera body that was making the lens stuck ...
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1answer
73 views

Why does some lenses have red focus points on their focus rings? [duplicate]

A typical lens have white focus indicators on their lenses [5m 50m and infinity] but some have red points for 85m and farther and some lenses have a red curve instead of numbers. What are these red ...
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1answer
163 views

How can I do 4x5 rise/fall movements with super wide angle lenses?

I'm looking for super wide angle lenses, ideally 50mm and below. I'm only interested about decent rise/fall movements because I do mostly architecture, and I'd like to be very close to the subject. ...
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1answer
99 views

Can I use the Canon 55-250mm lens on my Nikon D5200 body? [duplicate]

Can I use the Canon EF-S 55-250mm f/4-5.6 IS STM lens on my Nikon D5200 body?
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5answers
225 views

Why is low chromatic aberration considered important in the digital era?

I have read many lens reviews. It seems that low chromatic aberration is considered an important property of lenses. However, film is a dead dinosaur today. Practically everyone is using digital ...
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1answer
71 views

Which lens with Canon700D for landscape and travel photography? [closed]

I have got an iPhone X from which I have been taking landscape and travel photos. But I have also got a 700D with 18-55 and 55-250, which I never really used. Currently, I am not thinking of ...
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1answer
605 views

Does Canon EF 50mm f/1.8 II work with Canon 200D? [duplicate]

I want to buy a Canon EF 50 mm f/1.8 II. Does the Canon lens EF 50 mm f/1.8 II work Canon EOS 200D?
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2answers
138 views

How to choose focal length (35/40/50) for flower and plant product photography?

I own a Nikon D3500. I want to buy a lens so I can take photos of products (Flowers - Bouquets - Plants) to upload to my e-shop. I am working on a flower shop. I already have a white studio 90cm X ...
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2answers
163 views

How to choose a one- or two-lens “starter kit”?

For someone who is starting out in the world of photography, is a two-lens starter kit a good option? Does having a series of lens options, from the beginning, help develop a sense of which lens to ...
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2answers
84 views

Aperature/f stops/lenses [duplicate]

I am interested in landscape photography and a common point I hear thrown around is that a higher aperture (f11-f22) is best for landscape photos. However, every blog, YouTube video and photography ...
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2answers
109 views

What attachments to get shallow depth of field with a smartphone?

I'm doing a research project involving machine vision, and would ideally like to find a lens with a shallow DoF (perhaps about 2m or so in-focus) that can be attached to a smartphone. Something that ...
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5answers
671 views

Would a 50mm lens on a Canon APS-C crop produce the exact same image as an 80mm lens on a full frame camera?

Scenario: I put a 80mm lens on a FF camera and take a picture I put a 50mm lens on a Canon APS-C crop camera (1.6x crop) and take a picture Going by the 1.6x crop, I understand the fields of view of ...
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1answer
126 views

What is lens astigmatism?

Can someone simply explain astigmatism and its different types? How are they caused in lenses, and how can they be identified in images? I'm looking for a simple, understandable explanation. I've ...
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2answers
546 views

How will tiny scratches on rear element affect image quality?

I have found a rather cheap Mamiya G 50mm f4 lens on ebay that has some tiny scratches on the rear element of the lens. Now, I have done some research on how much such scratches could affect the ...
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3answers
141 views

How to decide between 28/1.8 non-IS and 35/2 IS to complement 50/1.8 non-IS on Canon DSLR?

I have a Canon EOS 2000D DSLR (crop factor approximately 1.6). As the lenses, I have 18-55 mm IS zoom (f/3.5-5.6) and 50mm non-IS fixed focal length (f/1.8), and have ordered a 55-250 mm IS zoom which ...
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3answers
256 views

Which modern lens can achieve this kind of depth of field?

Im interested in knowing why the depth of field(mostly the background blur)in the Old image is very different from the depth of field in the New image? More then DoF the blur in the Old image is ...
2
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2answers
87 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 ...
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1answer
458 views

How to choose between Canon EF-S 60mm f/2.8 Macro USM and EF-S 35mm f/2.8 Macro IS STM

I'm looking for a macro lens for my Canon 80D. The two crop-specific offerings from Canon are the EF-S 60mm f/2.8 Macro USM and EF-S 35mm f/2.8 Macro IS STM. They're both on the affordable end of the ...
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3answers
178 views

Want to upgrade Canon T6i and need guidance

I have a Canon T6i and mainly use a Sigma 18-250 lens. I photograph lots of stuff (landscapes, my kids, sports, architecture, wildlife, etc). I have a good wide angle lens for the landscapes. I want ...
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1answer
91 views

Where can I find service manuals for old (and new) lenses?

Besides Google, where can I find service manuals for old (and new) lenses?
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1answer
130 views

Can mounts on Vivitar 75-205mm lenses be swapped?

I have a Vivitar 75-205mm f/3.8 MC Macro Focusing Zoom Lens with a Minolta MD mount. Would the Nikon AI Mount from the same lens (Vivitar 75-205mm f/3.8 MC Macro Focusing Zoom Lens Nikon AI Mount) ...
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3answers
222 views

In photo taken with a prime lens, what is the cause of the “zoomed” bokeh appearance?

This image was taken with a Vivitar 24/2 (Kiron) prime lens. The lens is sharp. The focal plane is reasonably flat, and there is barrel distortion. The bokeh balls have an oval shape in which the ...
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1answer
83 views

Can I use a lens with aperture ring on an adapter that has its own aperture ring?

I want to use a Helios 44K-4 58mm f/2 on my Sony A6000. I found an adaptor with aperture ring, but the lens already has an aperture ring. Can I use it anyway? This is the adapter: K&F Concept PK/...
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7answers
284 views

Are there add-on lens accessories which collect additional light, as a parabolic microphone can be used to gather more sound?

I recently imagined a useful accessory. Suppose you need an fast shutter and low ISO photo, but your APS-C camera doesn't help much, nor does your telephoto lens with very small aperture, in the ...
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3answers
209 views

How do I choose a prime lens to get blurred backgrounds for full-body street photography shots?

I like to shoot street photography, say with the subject far enough away in the image that I can capture the full body, and still get focal blur in the background. My kit lens gives a decent effect of ...
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1answer
69 views

need help picking a lens [closed]

hello I do hope some one can help me I'm torn between the to top lens in the photo the sigma 35mm 1.4 or the Sony 35mm 1.8 the Sony is sharper and cost 1/2 the price and the chr. aberration is less. ...
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1answer
131 views

What is this colorful 'C' shape blemish in this old Vivitar 28-85/2.8-3.8 lens?

What is happening with this lens? Bought in a box of used lenses. Clearly it has met with some abuse, but I'm not familiar with what's actually happening. It has this colorful 'C' shape somewhere ...
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1answer
334 views

What is the focusing mechanism on a Sigma 18-35mm F1.8?

I'm considering buying a Sigma 18-35mm, f/1.8 DC HSM ART but I am not sure about the focusing: Is it a "direct manual" focus, or does the focus ring just control a servo? Does it have hard-stops? How ...
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1answer
158 views

How wide does the front element of a lens have to be, given the focal length and the aperture?

Clearly, a lens with focal length F and aperture 1/f has to be at least F/f mm wide. Maybe a little more to accommodate the angle of view. However, lenses tend to have wider front elements than F/f. ...
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2answers
58 views

How do constant aperture zooms produce identical exposure, even though focal length is larger? [duplicate]

My understanding is that a larger focal length corresponds to a larger working aperture diameter, since the numerator is larger. Why doesn't a larger working diameter correspond to a brighter image? ...
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6answers
211 views

Lens for cosplay shooting at events on DX sensor

I know this question is searchable in Our Lord Google, but I find most answers over there assumes a FX sensor, and still I don't have things very clear. Well, I'm just a beginner photographer that I ...