All Questions
274 questions
0
votes
2
answers
6k
views
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 ...
- 391
1
vote
2
answers
216
views
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 ...
- 125
3
votes
3
answers
654
views
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 ...
5
votes
1
answer
1k
views
Why won't Canon EOS 400D turn on?
I have the Canon EOS 400D - also known as EOS Digital Rebel XTi, or Kiss Digital X in Japan - and as of tonight, it stopped working. It won't do anything, with or without batteries or a CF card, ...
- 51
2
votes
1
answer
240
views
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 ...
- 143
8
votes
4
answers
3k
views
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 ...
- 577
1
vote
3
answers
220
views
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 ...
7
votes
5
answers
2k
views
Can you determine if focus is sharp without diopter adjustment if your sight is imperfect?
I've already encountered this question about wearing glasses as a photographer. A more specific question I have is as follows. If your eyesight is not perfect, or your glasses and/or contact lenses ...
- 931
1
vote
1
answer
151
views
Create a canvas-like style (a blurred effect)
Hi I would like to have a fluffy effect for the details of my image, and I have tried tools such as Sharpen, Blur in Fliter, and Clarity in RAW manipulation, but in vain.
The left hand side is the ...
- 111
0
votes
3
answers
869
views
How will a teleconverter affect the sharpness of a lens at a given aperture?
If I have a 200mm f2.8 lens and apply a 2x teleconverter the effective focal length and aperture becomes 400mm and f5.6. However, I am unsure about the effect this has on other aspects, such as image ...
- 200
9
votes
2
answers
2k
views
What makes the difference on partially and fully visible moon?
While I'm satisfied (despite the fringe) with shoots from a partially visible moon with a cheap 500 mm lens:
1/100 ISO 100 f/?
I cannot understand why the image quality is extremely diminished when ...
- 527
1
vote
1
answer
317
views
Why is the Canon-mount Sigma 24mm F1.4 DG HSM Art sharper in the corner in DxOMark's ratings than Nikon-mount version?
Why is the Sigma 24mm F1.4 DG HSM A lens corner sharpness much better in the Canon version than the Nikon's, according to DxOMark's ratings?
Canon:
https://www.dxomark.com/Lenses/Sigma/Sigma-24mm-...
- 143
0
votes
2
answers
307
views
what technology does Nikon use to reduce moire?
Nikon cameras do incredible job with moire effect even that nikon cameras do not have anti aliasing filter.And i didn't find moire in any situation with my Nikon d7100
- 51
2
votes
0
answers
44
views
Canon DSLR photos underexposed [duplicate]
I have a canon DSLR and even in Manual mode or with proper settings, I have to bump aperture, shutter speeed AND ISO to get photos to be even CLOSE to the right exposure. Currently have my ISO set to ...
4
votes
1
answer
1k
views
Why are test images from my Fujifilm X100F softer than I expect?
I just got a copy of the X100F, and I was really excited to play around with it. But as I've taken a handful of pictures in various settings, I've noticed that the sharpness of the images were not ...
- 81
1
vote
0
answers
76
views
Losing sharpness - lens AF broken? [duplicate]
I have an 10 year old camera (Canon 400D) and primarily use a fixed Canon 1.8 50mm lens. This weekend I was using it and noticed most of my photos with that lens looking blurry and unfocused. Over ...
- 111
2
votes
2
answers
1k
views
Lack of Focus/Sharpness on Zoom
I have recently taken what I thought were hundreds of amazing pictures of a group of seals on an CA beach - only to find every single picture is clearly out of focus or lacks sharpness. A sample ...
- 21
9
votes
3
answers
2k
views
How to avoid the grainy background in sunset picture?
I was taking this picture of the sunset.
I used auto focus, but the trees are not really that focused.
Also, the red background is grainy.
Any tips if I get this opportunity again?
I was using a ...
- 249
9
votes
3
answers
600
views
Can using a high resolution sensor and downsampling compensate for a soft lens?
In this question Does super-sampling produce good results? the difference in quality between using a high and low resolution sensor of the same size and then downsampling the high resolution one gives ...
- 1,611
5
votes
1
answer
168
views
Are focus and resolving power optically equivalent?
Limited "resolving power" or "sharpness" is a problem one can see with many lower-quality lenses, especially with higher-resolution camera bodies.
Playing with my cheap 500mm mirror lens, I often get ...
- 3,653
2
votes
2
answers
522
views
Why do Photoshop, InDesign, Pixelmator Pro, and Mac Pages all "smooth" my digital photos on export to PDF (how achieve best print preparation)?
I am preparing digital photos for printing and performing various test prints for comparison (with a very cooperative print shop). The print shop only accepts PDF, not direct print from raster format ...
2
votes
3
answers
635
views
How do I get the best sharpness from a Zeiss Jena Pancolar MC lens?
I've just ordered a Zeiss Jena Pancolar MC 50mm prime lens, and have been reading up as much as I can about how to get the best quality images from it.
It's my intention to use it mainly with 3 ...
- 1,182
0
votes
2
answers
455
views
Sharp focus photography with APS-C [closed]
So, it happens that I am really passionate about the sharp focus photography, where some points on the picture looks sharper than the usual, just like the example I've attached.
My question is: how ...
- 311
-1
votes
1
answer
545
views
Programmatically assessing image quality [closed]
I am using a third party service which processes images and returns some metadata:
The data (and ranges) looks like this
sharpness 0-1
brightness 0-1
contrast: 0-1
dominant color: hex
array of '...
- 109
3
votes
3
answers
650
views
How does one evaluate the sharpness of a fisheye lens throughout its field of view?
While I have been analyzing sharpness and other optical properties of rectilinear lenses for a while, I have received a fisheye lens covering 180° and am having trouble producing an adequate test. ...
- 103k
0
votes
2
answers
179
views
How can I capture motion while maintaining the sharpness of the main subject with an iPhone?
I want to capture motions. I use shutter priority mode with very low speed to get motion blur. But still want to maintain the sharpness of the main subject. I'm using iphone Camera + app. But I couldn'...
- 217
6
votes
2
answers
776
views
To what extent, and how, does light source affect sharpness?
The quintessential window-lit portrait has a soft glow about it. A photo may be sharp, but it's perceived sharpness is on a different level from a photo taken using a single light utilizing a snoot or ...
- 20.5k
0
votes
3
answers
623
views
What is causing the lack of sharpness in this picture? [duplicate]
What is the most likely cause of the lack of sharpness in this picture? Taken with a Nikon D3000 and a 55-200 lens at 200mm, 1/320s, f/5.6, ISO 400.
2
votes
6
answers
2k
views
Why are images from FujiFilm X-T20 darker than those from Canon 400D?
I’ve just bought a mirrorless FujiFilm X-T20. In my first tests, it seem to ask for quite high ISO even in daytime indoor. So, as a test, I compared it with my previous camera, digital reflex Canon ...
- 133
1
vote
2
answers
3k
views
Are there tools used to remove heat-haze or other atmospheric conditions for long range shots?
So I was on a hill doing long range landscapes, miles away. I notice that the shots are specifically less sharp and noiser if I'm aiming at a city, but if I aim at the body of water in front of it or ...
- 2,063
3
votes
3
answers
8k
views
How to improve image sharpness on Canon 700D?
I'm currently using a Canon 700D with a few EF-S lenses, I like the Canon system, the looks, feel and ergonomics but I'm not happy with the files I'm getting. Whenever I come across a photo that ...
- 418
0
votes
2
answers
637
views
How should I arrange a scene to test the relative sharpness of lenses with different focal lengths?
I want to compare sharpness of two lenses, consider 50mm f/1.8G vs 35mm f/1.8G from Nikon on a crop sensor camera by taking some photos (from some small size text on a paper) and review the results. ...
- 211
3
votes
4
answers
5k
views
Why my DSLR is not as sharp as my smart phone?
I recently bought a Nikon D5500 camera with two lenses: 18-140mm f/3.5-5.6G ED VR and 50mm f/1.8G. When I compare the results with my advance smart phone (Samsung Galaxy Note 5), the sharpness is not ...
- 211
-1
votes
1
answer
2k
views
How to get a sharper image using Nikon D3200? [duplicate]
Just wondering if you have any tips on getting a sharper image with a Nikon D3200? I was using a kit 18-55mm but solved the problem by taking someone's recommendation and shot a pic at F8 while in ...
- 1
4
votes
1
answer
567
views
what does RIH mean in an MTF chart
I've read some guides to interpreting an MTF chart, but I can't find any information about the meaning of RIH. My thought an MTF chart would show line/mm curves, so ...
- 155
7
votes
4
answers
2k
views
How to take sharper photos [duplicate]
I am sick and tired of getting photos that turn out just slightly blurry. I can't seem to figure out why this is or how to fix it. I like to shoot at events, indoors and outdoors, action shots and ...
- 1,135
0
votes
3
answers
988
views
Why are my product photographs not sharp?
I just bought a Canon 750D. The picture has too much noise. The detail/shine of the diamond is not really showing. I am also using a tripod and timer.
The lens is the EF-S 18-55mm ƒ/3.5-5.6 IS STM. ...
- 45
1
vote
1
answer
228
views
How can I improve the sharpness of my Sigma 50mm 1.4 DG HSM lens? [duplicate]
I've had it for a while but haven't used it much because it is not sharp. Suggestions? Can it be sent off and is that expensive?
- 11
1
vote
2
answers
25k
views
What kind of old 35mm point and shoot do I need to take photographs in the style of Gunnar Stahl?
I'm looking for a camera that shoots comparable to the Yashica t4 super/ Nikon l35af. I love the sharpness the camera puts into the photo and the lighting with the flash is the look I want for a ...
- 85
0
votes
1
answer
538
views
Lens quality impact on sharpness
I have a Nikon D7200 and recently took it on a trip where I shot with both the kit AF-S 18-140 f/3.5-5.6 ED VR lens and the Nikon AF-S 24-70 f/2.8G ED lens.
While I consider myself a relatively good/...
- 904
0
votes
2
answers
346
views
Can't get sharp focus on Canon 7D at 250mm f/32 [duplicate]
I'm an accomplished photographer (at least I thought I was) until I shot and re-shot a scene and it keeps turning out soft.
Settings: Canon 7D... 250 mm...f29...manual focus...1/40 exposure
I used a ...
7
votes
5
answers
6k
views
Do cheap filters have an effect on image quality?
Do cheap lens filters (UV, ND, CPL) affect image quality, color reproduction, sharpness, etc.? Do they really offer protection?
- 353
0
votes
1
answer
720
views
Tight shutter speed but picture still blurry!
I shot indoors under dim lighting and struggled getting sharp quality.
The image below was shot at:
1/125 8.0 ISO 3200
My thinking was the ISO was high enough, the shutter speed fast enough ...
- 73
1
vote
3
answers
942
views
Can't get my pictures sharp (Rebel Ti2 + tripod + Sigma 10-20 f/3.5 EX DC)
I'm really into landscape photography but I can't get my pictures to look sharp. They look boring and dull. I focused to infinity by using the infinity symbol on my lens and by manually focusing using ...
- 243
2
votes
3
answers
1k
views
Why do images sometimes look "softer" at higher focal lengths (like 300-500mm)?
I get that it has to do with the lens, but what exactly is causing this?
- 812
1
vote
2
answers
655
views
Will there be a noticable difference in sharpness and color between Nikon and Canon [duplicate]
Hi I have a Nikon D750 with a 70-200mm f2.8 VRii lens and a 35mm f1.8G ED lens. I mostly shoot family portraits. I was thinking about switching to the Canon 5D Mark IV with a 24-70mm f/2.8L II USM ...
- 143
2
votes
1
answer
664
views
Canon EOS 400D - Shutter Release Lock Override
I recently acquired my first DSLR camera, an old Canon EOS 400D.
Not the most intuitive device, but for the most part it seems like a fine camera for an amateur.
The problem I have is one of missed ...
- 615
3
votes
3
answers
1k
views
Why is only part of this image blurry?
I took this picture using a Canon 60D with a Tamron 28 – 300mm lens at f/16 and 2 minute exposure time using a tripod.
I am wondering why the lights are not sharp on the right side, and what should ...
- 31
5
votes
5
answers
6k
views
At what point does the Canon 5D Mark IV's high-ISO performance give it higher real resolution than the 5DS (R)?
I want the sharpest images with the most detail possible.
Resolution increases detail (to a limit)
Noise decreases sharpness
Therefore, I have a dilemma. I am looking to purchase a new DSLR: either ...
- 51
7
votes
4
answers
1k
views
How can I improve the sharpness for tabletop still life of photography?
I have a Nikon D5100 DSLR with a 18-55mm lens and a 55-300mm lens. I'm shooting with a tripod (and remote) over a table top where I've arranged flowers and other miscellaneous things, using mostly the ...
- 73
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