Westminster fountain at sunset

by Jorge Córdoba

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4
votes
2answers
148 views

Use of DOF adapters in stills photography

The camcorder guys figured out long ago how you can get the shallow DOF of a larger sensor system (typically full frame) on a camcorder equipped with a much smaller sensor (typically 1/2.8") by doing ...
1
vote
1answer
144 views

How does amount of blur compare between differently-sized sensors using lenses with equivalent focal length?

Let's say we compare two bundles: 1) cropped DSLR with crop factor 1.6 and 50 mm fix lens set on f/1.4 aperture 2) full-frame DSLR and 50 * 1.6 = 80 mm (which is not far from 85 mm) fix lens on ...
3
votes
4answers
399 views

How is it possible to have shallow depth of field with a small aperture? (The tele-macro paradox.)

Some longer tele lenses have a macro mode that allows for really shallow depth of field that have a lot of background melting when using relatively narrow apertures; like f/4.5-6. I have tried and ...
5
votes
3answers
998 views

How does using a lens with some focal length on a full frame camera differ from using a lens with “equivalent” focal lens on a crop camera?

As an example, a 35mm lens on a crop body (such as Nikon DX) is said to be "equivalent" to a 50mm lens on a full frame body. Equivalent here means that they will have the same field of view, but what ...
6
votes
3answers
2k views

What are “Depth of field and focus scales”?

I'm reading Kurt Munger's review of SAL75300 (Sony's 75-300mm F/4.5-5.6 lens) and I noticed the entry "Depth of field and focus scales? Nothing" in his summary table. Now, I know what depth of field ...
3
votes
5answers
4k views

In what kind of scenes does it make sense to use f/1.4 aperture?

I have been told that it is difficult to focus with an aperture of f/1.4. So, in which kind of scenes does it actually make sense to use the f/1.4? In portraits they say that it is important to keep ...
6
votes
1answer
502 views

What are the “Distance Setting Marks” for use in storytelling composition?

I am reading Understanding Exposure, by Bryan Peterson, to learn some bits and tricks about photography. I came across one line "You would first choose to set your aperture to f/22 and than align the ...
8
votes
5answers
4k views

Will a lens with a low aperture value give me better portrait photos?

I want to take pictures of people from 5-20 feet away. I attend lots of group events and am free to walk around and snap photos. I just purchased a Canon t3i and it comes with a 18-55mm kit lens. The ...
9
votes
2answers
4k views

How can a Frazier lens achieve that massive DOF?

I've read in PetaPixel about this "Frazier lens" that can achieve a massive DOF. In this video is shown the capabilities of this lens and I must say I'm very impressed. How can this lens achieve such ...
17
votes
6answers
2k views

Can a smaller sensor's “crop factor” be used to calculate the exact increase in depth of field?

If APS-C and similar crop-sensor digital cameras have a focal length multiplying effect such that a 50mm lens has an apparent focal length closer to the field of view of an 80mm on a full frame ...
1
vote
5answers
2k views

How to choose a lens to get a shallow DOF effect? [duplicate]

Possible Duplicates: Can I get a shallow DOF using a kit lens? Help with getting bokeh effect. I'm an amateur photographer, just getting into photography. I read some things about lens ...
6
votes
4answers
697 views

Is depth of field and bokeh influenced by distance to the subject?

I know that the aperture size has a direct effect on the depth of field. However, what about distance to the subject? Let's say I took two pictures, one at 24mm and one at 70mm, using the same lens ...
15
votes
6answers
5k views

How does background blur (bokeh) relate to sensor size?

This is a somewhat theoretical question. Suppose I first take a photo of a subject using a full frame sensor DSLR, with a given lens (say 50mm prime lens at f/3.5). Now suppose I exchange the camera ...
4
votes
6answers
2k views

Can you help me justify my desire to purchase the Nikkor 24-70mm f/2.8 even though I find it rather pricey?

I have a D70 with the stock Nikkor AF-S 18-70mm f/3.5-4.5G ED DX lens. I'm about to replace the body with a D7000. I've found the 3.5 f-stop a little limiting in terms of DoF - and having viewed ...
-5
votes
5answers
4k views

How can I get bokeh with an aperture of 3.5 as my max?

I am trying to get DOF portraits of my daughter with my Nikon d7000, as per my previous post. I have zoomed in to 100mm or so and tried to get a large aperture but as I zoom, the camera decreases f# ...
11
votes
4answers
4k views

Can I get a shallow DOF using a kit lens? [duplicate]

Possible Duplicate: How can I get dramatic shallow DOF with a kit lens? Is it possible to generate shallow DOF with a "kit" lens, and how? In my case, I have the Nikon D7000 with the ...
9
votes
6answers
3k views

What does small depth of field mean?

Can anyone clarify for me the various terms used to describe depth of field? There are so many it's hard without a photo dictionary to relate in my head what's actually being said to me about the ...
10
votes
2answers
942 views

How can I determine if my Sigma 10-20mm lens copy is appropriately sharp and focusing right?

I just purchased a Sigma 10-20mm lens (Canon mount) and based on the reviews I was aware that many people receive copies of the lens that are soft or don't focus properly. I purchased from B&H, so ...
2
votes
4answers
455 views

Have a Nikon 18-200 VR lens ..want to buy a new lens for super DoF

I have a AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II and am planning to buy this AF NIKKOR 50mm f/1.8D does that make any sense? I'm interested in taking pictures that has lot of DoF. Something ...