Questions tagged [sharpness]
describes clarity of detail, the perceived combination of resolution and acutance.
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Compensate aberration to improve the quality of a surveillance camera
I am analyzing the videos recorded by a surveillance camera and noticed that, in most scenes, there is a sort of "halo" around the right part of people passing by (also around the orange ...
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Canon EF 40mm f2.8 consistently sharp across the frame?
Does the EF 40mm f/2.8 lens give sharpness not just at the center but also to the periphery most of the time..? In comparison with the 50mm f/1.8 STM which only very sharp at the center..?
I have done ...
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Why are photos of landscapes taken on a sunny summer day very unsharp despite a rather short (1/40") exposure time?
Last weekend (in mid-September) I took some wide-angle (24 mm APS-C) photos of a landscape in my vicinity. Despite good illumination (the day was quite sunny), a not-too-long exposure time (1/40")...
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What can cause double-vision effect in slightly out of focus areas?
I have an issue with my Canon 70-200 F/4L USM. It is less sharp at 200mm than at shorter range and the objects that are slightly out of focus are rendered twice with horizontal offset. The shutter ...
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Example images of 24.3 MP that have been deemed "Ultimately Sharp"
I am looking for raw images or websites that I can compare my D750 .NEF files to regarding sharpness. I don't have any problems with the camera-lens combos, all fine tuned with Lens Align several ...
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Can a filter make an image sharper?
A recent social media campaign by Urth, promoting their new magnetic filters, claims to increase sharpness (emphasis my own)
Our professional Ultraviolet Filter Plus+ cuts UV light to make your ...
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Why is my lens sharpness much softer at f/1.2 than higher apertures when taking landscape pictures?
I recently bought a used Canon 50mm f/1.2 L USM and have been noticing that the lens is quite soft at f/1.2 (using a Canon 1DX Mark II, if relevant). Now it's the first time I am shooting at such ...
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How is reflection sharp when not in DOF range? [duplicate]
This is baffling to me. When you use fast lens and you focus on a subject, you'd think that everything that's not in DOF range would be blurred but this is not the case if the object is a mirror or ...
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Under what circumstances does f/22 cause diffraction?
Today I went out to get a photo of a historic building with a lake in front and opted to shoot at f/22 with a tripod. To my surprise, the images aren't sharp. I also used the Olympus high res mode and ...
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How to calculate the optimal distance to photograph details for mobile phone lenses?
Most of the mobile phones I've owned have a primary, wide angle camera lens somewhere around 28mm. If I wanted to capture the most details/sharpness (the most pixels) and ignored perspective and ...
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Are faster lenses inherently better than alternatives if shooting with same aperture?
Let's suppose there is a faster prime and slower zoom lens which covers the same focal length and I want to shoot landscape scenes with certain fixed aperture to make sure the depth of field is big ...
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What is the optimal pixel count on a cropped sensor for Canon 100mm macro USM lens?
While choosing used camera to buy, I was checking some combinations of camera bodies with Canon 100mm macro USM lens at DXOMARK and noticed that sharpness (in perceived megapixels) looks very strange.
...
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What might cause the center of my image to be less sharp than the edges?
I'm using a Sony A7R IV camera with a 12mm f/2.8 ED AS NCS Fisheye Lens. From the rescharts and MTF information that I've seen of this lens, the center sharpness is much better than near the edges. ...
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Sigma 60-600mm is never sharp whatever the aperture
Today I tested my sigma 60-600mm lens and I was really disappointed by the quality of the images produced.
I use a Nikon Z6ii and the FTZ (v1) adapter and everything is fine with my other F-mount ...
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Is the Sony A6400 weaker than the Pixel 4a?
I've just bought a returnable Sony A6400. I've taken some shots with it, and the same shots with my Pixel 4a. (Static subject; lighting not bright, but nowhere near night mode.) A6400 set to JPEG ...
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How can I get rid of shadows generated from light source behind object of interest?
I am work in research and I have a areascan basler camera and objective that I am using to track the deformation of an object under load. I have attached an example image shown below.
I am looking ...
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How to calculate MTF ? Need help with the formula
I'm trying to reproduce MTF chart programmatically but I'm stuck at some point.
I'm starting with a clean bar chart like this:
I then take a picture of this pattern with a smartphone (printed on HD ...
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How to technically measure sharpness?
I'm trying to measure sharpness through a script in order to measure sharpness across different devices.
My methodology:
I have a pattern with pure white and black stripes like this:
I use HD ...
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Why are my new camera's photos coming out blurrier than my iPhone's when I look at them zoomed in?
I am a beginner at photography and recently got a camera (Nikon D5600). I watched a few videos on how to use it but I am still finding it difficult to operate. I have several questions but the main ...
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Slow shutter speed and image sharpness
I'm new to photography, I hope I won't misuse any terms here.
Let say I shoot a still subject like a product on a tripod with controlled lighting.
Let say I have little light and so I use a slow ...
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Picture looking sharp in Live View mode, then losing sharpness after picture has being taken
Since recently I am experiencing an issue with the sharpness of my images.
I am using canon 70D with a macro lens for shooting jewellery and I need to have a very clear picture to capture the ...
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Why can I not shoot as sharp as I see on live preview?
I am trying to photograph a piece of jewelry. I have a Canon EO 90D camera with EFS 18-135 lens. I am using a lightbox and a tripod with plenty of light. I zoom to 106mm. I manual focus to get a super ...
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Picture gets blurry when zooming in
My Nikon 3400's kit lens(18-55mm) works fine when I take pictures at 18mm. But when I extend lens beyond that, the picture gets blurry(no clarity). Though I can focus on extremely close distances ...
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Why am I sometimes having "doubled image" and soft photos with my Tamron 100-400mm
I sometimes get unsharp results out of my Tamron 100-400mm F/4.5-6.3 Di VC USD, with a "doubled image effect", especially visible in the out-of-focus area (bokeh).
But the rest of the time, ...
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Need some help with astro photography
I'm just getting into photography and I'm interested in landscape, astro and macro photography.
Because of the comet C/2020 F3 (NEOWISE), I tried to make some pictures during the night, but I think ...
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What does make a vintage lens not sharp and can we fix it?
Situation
I have this Takumar 200mm lens mounted on a Canon 60D with an m42 adapter. I really like the lens because of the bokeh it creates but the photos are so soft. I tried all the f numbers from 3....
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Reduce image sharpness and DPI [closed]
Why does the sharpness of the imag decrease when I increase the DPI of an image?
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Do more megapixels mean sharper images?
Do more megapixels mean sharper images?
Would a 24 MP camera produce a sharper image than an 18 MP one (given the same lens, settings and scene)?
user91798
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How to proper focus for sharper images?
For shooting landscape photos, what is better using manual focus or automatic focus?
I seen a lot of people who focus with automatic focus then switch to manual focus, is this so the focus doesn't ...
user91798
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Different focus on different parts of the picture
I have a problem with the camera on my Xiaomi Mi A2. It mainly occurs when I take pictures of things far away. This problem is consistent. I have added a few pictures. You can see in one of the ...
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Sony A6000 with Sony E 18-200 lens: images unsharp on the left, in particular at zoom — lens damage?
My photos, taken with a Sony A6000 with a Sony E 18–200 mm lens, are unsharp on the left at moderate zoom and unsharp everywhere off-centre in severe zoom. This effect is present with image ...
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What is the optical problems in these test images and what causes them?
As I was recommended in the question How to determine which lenses are good at testing teleconverter quality? I was taking test pictures trying to determine lens/teleconverter quality. No I did not ...
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Images Unsharp Or My Criteria Needs To Be Adjusted [duplicate]
I have Nikon D3500 with kit lens 18-55 VR and some other lenses af-p 10-20 among them.
As I renewed my interest for photography some time ago, I have some images at the LR scrutiny that were taken ...
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Settings to improve dull images
I am using Nikon D5600 with 18-55 mm kit lens. When I take photos of open fields or other landscapes, the color combination comes out dull. I compared it with Canon 1500D photos. Photos from Canon are ...
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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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Optically reduce chromatic aberration - is it worth trying?
I have been using this Tamron SP 180mm 1:1 Macro - F/32 lens to digitize 35mm slides. Unfortunately, the lens' chromatic aberration is quite noticeable, when used at 1:1.
I have plenty of strobe light ...
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Why can't I shoot with a fast shutter speed with my continuous light at max power?
I would like to ensure a sharp focus of my object when shooting overhead (both object and background in focus). However, when shooting in manual at f/8.0 and ISO100 my shutter speed has to be 1/4 for ...
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Will a Nikon D810 give me more fine detail than a D610 for macro enlarged shots?
I do a lot of photography that focuses on tiny details usually with marine animals such as coral. I am in need of a camera that produces a photo, that even when enlarged from a macro point, it retains ...
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Do I really need a US$1500 rig for crisp sharp photos? [duplicate]
I'm getting into photography and got myself a used Canon 1200D with a Tamron 18-200mm lens. And currently under no circumstance I am able to make a perfectly focused sharp and detailed photo. Or at ...
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Is it better to shoot at diffraction limited aperture or sharpest lens aperture?
In the old cameras like Nikon D80 with 10 Megapixel pixel count. The diffraction limited aperture is F/13 but its known that lenses are generally sharpest at the F/8 so it's a no brainer to shoot at F/...
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Why are my picture not as sharp when shot RAW as when saved as JPEG [duplicate]
Newbie question here.
I shot an image in low light in jpeg format and it's crisp, but when I shoot raw in plain day at 1/125, my image looks blurry most of the time. Unless I max out the sharpness ...
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What affects tripod stability?
I have a Vanguard Veo 2 265 CB tripod. I really like it and it has been performing, but lately I am trying to get my pictures as sharp as I can get and I noticed something. It must be trivial to ask,...
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Tamron 100-400 (Canon EF) sharpness
I'm puzzled by how the results that "The Digital Picture" have received while testing the new Tamron 100-400 telephoto zoom lens contrast the positive reviews by the actual users all over the Internet....
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Why does grain increase acutance?
The Wikipedia article on acutance claims that a slight amount of noise or grain can increase acutance. Cambridge in Color gives the following demonstration.
No noise:
With noise, with more acutance:
...
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Why do I get so many unsharp pictures with my Canon 70-200 IS f/2.8?
Please take a look at the picture below. You can see where the focus point was thanks to a LR plugin. But the image is unsharp - again. And yes, I'm sure the dog was standing still enough for 1/250 ...
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Is this the limit of the camera image quality or is the subject out of focus?
I'm using the "macro" mode in the Powershot G9X II. The macro mode is simply a shorter focus range, there is no magnification in place, like in aftermarket macro lenses for DSLR's. I've shot many ...
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Will upgrading from P900 to Nikon D500 and a 200-400 lens make my bird photographs sharper?
I am using a Nikon P900 and although I love the camera the image quality is not always as sharp as it could be. Also it is just 3 years old and is falling to bits although i do use it daily. As most ...
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Long-end softness in a wide-angle lens
I just got a copy of the Tamron AF 20-40mm F2.7-3.5 SP Aspherical IF for my Sony a7 (using the non-AF Sony A/E adapter) over eBay. I'm seeing what seems to me like a surprising degree of softness ...
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Why is Nikon 1.4g better when Nikon 1.8g is sharper?
I am new to photography (just 3 to 4 months of experience) and I am looking to buy a new lens (either 35mm or 50mm, but mostly 35mm because I have already decided Sigma 85mm f/1.4 DG HSM Art Lens for ...
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How to capture sharp images of multiple objects on a wall?
I need to photograph a wall with multiple paintings with every painting under sharp focus.
I believe depth of field doesn't play here as all the objects are at same distance.
I tried with higher ...
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