Linked Questions
33 questions linked to/from What is the advantage of a lens with a curved focal plane?
32
votes
9
answers
6k
views
Why would I want to select an autofocus point?
I'm trying to understand why I would ever want to select an auto focus point other then the center point. I have a Canon XTI Rebel DSLR which has 9 auto-focus points, but I'm also looking into getting ...
- 1,411
17
votes
9
answers
54k
views
Should I use a 100mm Macro lens as a portrait lens?
I am specifically considering using the Canon 100mm Macro as a portrait lens. If I want to have a macro in my bag, but not carry around a 70-200 2.8 due to weight, size, white color, or price if it ...
- 46.6k
30
votes
5
answers
8k
views
What is the shape of the focal plane?
This is something I just realised I don't entirely know the answer to, so I'm going to ask it here as I think it's interesting.
In most non-scientific writing on depth of field, diagrams generally ...
- 2,037
15
votes
9
answers
1k
views
Is it better to start out by buying a cheaper body and more expensive accessories?
In February 2010 I bought my first DSLR: EOS Rebel XSi EF-S 18-55IS Kit
I also bought a zoom telephoto lens: Canon EF 70-300mm f/4-5.6 IS USM
The XSi is a simple camera which I thought would be good ...
- 648
21
votes
4
answers
22k
views
How do I "focus and recompose" using spot metering?
I usually use the "[auto]focus and recompose" method for taking candid photographs. In situations where there is a high degree of contrast, I would like to use spot metering to correct expose for ...
- 2,641
1
vote
6
answers
10k
views
What should I charge for photography as an amateur?
I just started up my own photography business and I was wondering what I should with how pricing works. I thought of doing pets, families, babies, and senior pictures. I have some experience with a ...
- 19
7
votes
6
answers
4k
views
Why is the Tamron 90mm 2.8 marketed as Macro and not as a "portrait" lens?
My question is if a lens like a Tamron 90mm 2.8 could be used also for portrait.
If not, why ?
What are the difference between a specific portrait lens (like any 85mm 1.4) and a 90mm 2.8 ?
Only the ...
- 471
4
votes
3
answers
50k
views
kB vs MB - will pictures be good quality
I recently had my sons newborn shoot done and the photographer has sent me all his images in kB, is this right as I have always received MB files from previous ones. Will the quality be ok when I go ...
- 51
4
votes
4
answers
2k
views
Why would I need a portrait lens if I have a telephoto zoom lens covering the same focal length?
I am using a Panasonic Lumix G Vario 35-100mm F/2.8, a MFT telephoto lens.
I am learning about photography by reading articles and reviews and in one review it was mentioned there is a great portrait ...
- 469
4
votes
4
answers
7k
views
Why am I getting blurry images with a Sigma 35mm Art and Canon EOS 77D?
I recently got the Canon EOS 77D and the Sigma 35mm Art 1.4
I notice in my pictures stuff where i'm a little distance away I comes out blurry. My setting on here were ISO 800 f/1.4 1/160sec
I do know ...
- 63
1
vote
6
answers
3k
views
How to ensure sharp focus when shooting with an open aperture?
I've bought a Canon EF 50mm f/1.8 to use with my EOS 200D and while I love the wide aperture, it appears to be quite difficult to achieve sharp focus on people's faces when shooting at f/1.8. I've ...
- 2,976
4
votes
2
answers
3k
views
Is AF-S DX Micro NIKKOR 85mm f/3.5G lens good for both macro and portrait photography?
I'm thinking of buying a macro lens am considering the Nikon AF-S DX Micro NIKKOR 85mm f/3.5G ED VR.
Is this lens really good for portraits? Where can I find sample pictures taken with this lens? Is ...
- 49
3
votes
3
answers
1k
views
distance between pixels = a fixed measurement (inch, foot etc)?
Let's say the distance from my camera to my object is 3 feet. The object is a 6 foot long pole. The pole has a mark every inch. Will the number of pixels between the bottom 1 inch be the same number ...
4
votes
4
answers
689
views
Does a macro lens have a smaller DOF in 'real-world' distances at the same focal length and aperture as other primes, why?
This question IS about:
Does a macro lens have a shallower DOF at the same settings and focal
length as another prime?
If so, what in the optics is responsible for
this?
Using a Macro lens as a ...
- 1,155
1
vote
2
answers
2k
views
What are some tips for using a macro lens for non-macro photography?
I've seen this: Is a macro lens suitable for distant subjects - wildlife, sports, portraiture?, which says that macro lenses can be used for photography other than macro photography.
But what are ...
user75760
1
vote
2
answers
3k
views
How to focus on multiple object of interest [duplicate]
I have a Nikon D5300.
Mode: Manual
ISO: 100 (Bright Daylight)
Aperture: f/5.3
Shutter:1/80
Lens: 70-300mm
I am trying to find a way to focus on multiple objects, in my case, a bouquet of flowers. ...
- 173
4
votes
3
answers
698
views
Are points off-center from the lens axis out of focus? [duplicate]
If I take a picture of a flat surface perpendicular to the direction of the lens (i.e. the surface is facing directly at the camera), and I focus on the center, are the points off center in perfect ...
- 41
2
votes
1
answer
1k
views
Will 50mm f1.4 and 85mm f1.8 lenses produce the same bokeh, given the same framing?
I have recently upgraded from a DX Body (Nikon D3300) to a FX body (Nikon D750) and also I have Sigma 70-200mm f2.8 & Sigma 150-600mm Sport lenses.
While I was using the DX body, I had a Nikon ...
- 185
1
vote
3
answers
1k
views
What is the Advantage of a macro lens compared to a macro tube? [duplicate]
I want to do some macro photography (plants, insects...) additionally to my landscape photography and now I am looking if it is more useful to just buy a macro tube to convert my existing lenses (a 18-...
- 699
1
vote
5
answers
893
views
Are prime lenses sharp across the whole frame while zoom lenses are soft in the corners?
Somebody told me that there is a difference in sharpness between a zoom lens vs. prime lens. A 58-200mm will give sharp focus in the center of the frame but blurry performance at the corners, while ...
1
vote
1
answer
1k
views
Why might focus fall off at the edges?
In the John Wayne movie Rooster Cogburn (1975), there is a dramatic focus fall off at least 10% of the vertical height at both the top and bottom of the lens. Why does this happen?
- 1,296
1
vote
2
answers
940
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 ...
- 880
1
vote
3
answers
315
views
Does image quality of the lens affect "focus and recompose" technique?
As I understand it, 'focus and recompose' is often used to ensure the subject is in focus and at the same time composition is right. It has been estimated that some lenses are best in terms of image ...
- 209
1
vote
3
answers
202
views
What's the difference between these two 1.4f 50mm prime lenses?
I was looking if I could get some used 50mm prime lens on the cheap. Googling around, I found two extremely different lenses, but I am not sure what the practical difference is.
One is Nikon 50mm f/1....
- 1,070
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 ...
1
vote
3
answers
241
views
How to focus on more objects at the same time while maintaining shallow DOF?
How can I focus on more objects, say three dogs sitting in front of you, while maintaining a nice background blur/shallow DOF? I have a kit lens ranging from 18-55mm with a variable aperture of f/3.5-...
- 243
2
votes
3
answers
451
views
Is diffraction limited aperture independent of lens?
I have always understood diffraction limited aperture as a property of the camera and its sensor, not of the lens. The camera has a certain sensor size and a certain megapixel count, which together ...
- 6,855
4
votes
3
answers
322
views
Does an offset split-focus screen exist?
I shoot a Nikon F3 SLR with a split-focus screen, and I do a lot of portraits with very shallow depth of fields (e.g. 50mm f2.8 at 0.5m).
When I shoot a portrait I focus on the eye first, then ...
- 315
2
votes
2
answers
239
views
How can a subject stay in focus if the shot is recomposed afterwards?
I have a doubt about a procedure that I see many photographers continuously apply and they taught me. I see that, when they want to take a picture with their reflex, they do this sequence of steps:
1)...
- 514
0
votes
1
answer
303
views
What lens is ideal for graduation and family pictures?
I am currently using a Tamron 17-50 f2.8 for graduation and family pictures, so that many people can fit into the frame, but I find this lens isn't sufficient enough — lack of sharpness around the ...
- 103
1
vote
3
answers
223
views
Why does image quality vary across lenses, and what to look for when comparing?
I just picked up a mint SMC Takumar 28mm f3.5 lens. From what I read people say it provides quite good image quality. And the things I read about my Canon T3 kit lens 18-55mm f3.5-5.6 IS, is that it ...
- 1,068
2
votes
1
answer
209
views
What ultrafast 28 mm lens for nikon f mount offers the least compromises?
I've been looking into the wide angle range of lenses to get as close to the medium format look as possible, and the Zeiss Otus 28/1.4 was a reasonable starting point. After a test, however, I think ...
- 205
0
votes
3
answers
221
views
Focus of lens dropoff from center to ends [duplicate]
I have come across a couple lens manufacturers that mention that when a lens is focused such that the center of the FOV is well focused, the extreme ends of the FOV will be slightly defocused.
What ...
- 229
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