Alley in Pisa, Italy

by Lars Kotthoff

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-4
votes
2answers
103 views

Canon 50mm f/1.8 [duplicate]

Is it worth buying a Canon 50mm f/1.8? What is the lens good at? I read a review that it is good at doing Bokeh. I tried using my Canon 18-200mm to do a Bokeh effect, but it wasn't that good.
1
vote
1answer
140 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 ...
5
votes
4answers
1k views

What Micro-Four Thirds prime lenses produce pleasing bokeh?

What prime lenses can you recommend for producing pleasing bokeh on the Micro Four Thirds cameras like the Panasonic GH2/3? I'm interested in both Panasonic and non-Panasonic lenses (including using ...
6
votes
1answer
1k views

Which Lensbaby Sweet 35 or Edge 80 effects are harder to reproduce post-processing?

I want some suggestions from Lensbaby users. I have the plastic optic, double glass and fisheye optic. I use the composer. The recent new optics: Sweet 35 and Edge 80 seem very intriguing and I ...
5
votes
3answers
983 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 ...
1
vote
1answer
230 views

Can a lens's bokeh be predicted by reading an MTF chart?

I've heard people say that everything meaningful about a lens's optical performance can be determined simply by looking at the MTF charts — although nothing is mentioned of that under How do I ...
6
votes
5answers
1k views

What about lens construction influences bokeh?

I can understand how certain elements of a lens can correct an aberrations or make it sharper - but specifically, how do lens manufacturers influence the bokeh - the quality of the blur? There's a ...
8
votes
3answers
2k views

Does a 35mm prime lens show the same bokeh as a 50mm prime lens on a cropped sensor?

I came to know that a 50mm prime lens on a cropped sensor behaves like an 75mm prime lens. So, does the 35mm prime lens behave like a 50mm prime lens on a cropped sensor? If yes, then will it show ...
1
vote
2answers
2k views

What lens for my Nikon D3100 will provide great bokeh and keep up with fast-moving kids?

I have a Nikon D3100. I'm trying to buy a lens that will mainly take outside pictures of kids with great bokeh. I can't decide between 35, 50, or 85mm. I'm worried about autofocus as well. With ...
6
votes
4answers
673 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 ...