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by Jorge Córdoba

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66
votes
12answers
4k views

Why are lenses always round in shape?

Why are lenses round in shape although the image sensor is not? Why they can not be square or something matching the shape of image sensor?
50
votes
5answers
1k views

Is there development in the world of lenses?

Now, I'm not an expert, so if this post makes you laugh, you're welcome. Still, as far as I know there are basically two components that determine the potential quality of a camera's photos: Sensor ...
28
votes
9answers
4k views

Better to buy an older high-level camera or newer entry-level camera?

What are the pros and cons of buying an older higher-level camera if the price is about the same as a new entry-level one?
21
votes
11answers
3k views

Are DSLRs a dying breed, making now the time to switch to a mirrorless camera system?

I came across this thought provoking article on Stuck in Customs today that makes a strong case to hold off too much investment in DSLR gear, and instead switch to mirror-less cameras like the Sony ...
16
votes
5answers
1k views

Might future advances in sensor technology reduce or eliminate noise?

Is there a possibility that future tech advances may reduce or eliminate the noise when using high ISO setting, or is this noise unavoidable and inherent to all digital sensors? If there is a ...
12
votes
4answers
483 views

Are the sensors of newer DSLRs better beyond just having more MP?

I have a Canon Rebel XTI now, and am considering upgrading my camera body at some point. Aside from the increase in megapixels have there been other improvements to the CMOS sensors of the newer ...
12
votes
1answer
158 views

Book on the rise of digital photography

I am very interested in recent developments in photography. Over the last 10-15 years there have been major upheavals in the industry, including the complete switch to digital and the death of photo ...
8
votes
8answers
629 views

What factors should I take into account when deciding whether to buy now or wait for something better?

Is it always better to just buy now and ignore marketing hype, announcements, and speculation? If I always wait for the next model, I will never buy anything. What about buying the cheapest thing ...
8
votes
4answers
6k views

How effective are in-camera integrated sensor cleaning systems, and have they improved?

Few years ago, Canon introduced some sort of internal sensor cleaning system that (as far as I understand it) shakes the sensor off any dust it collected during use. This shake is very high frequency. ...
7
votes
4answers
581 views

Has low-light ISO performance really improved over the past 3-4 years?

I have a Canon 40D and I always shoot RAW. I am overall pleased with the 40D except for its low-light performance. Anything at or above ISO 800 is unusable for my taste. Just to solve this problem I ...
6
votes
3answers
502 views

Fancy technology cropped vs old technology full frame - Which will give better images?

After selling my 1Dmk2 last year the time has come to get myself a new body, all along I'd decided that I wanted to do more "wow" pictures, big landscapes and do some more portait photography (up ...
6
votes
2answers
1k views

Is vector photography possible?

Of course any bitmap image can be vectorized, but might we ever reach a point where a camera can make an outline image that looks exactly like a photograph? Could the resulting image even be ...
6
votes
1answer
692 views

Does the older but still more expensive Pentax K-5 offer any advantages over the new K-30?

I was looking to buy a Pentax K-5 in the next couple of months. But with the announcement of the new K-30 im now currently questioning that decision. Is there any reason to go for the more expensive ...
5
votes
6answers
894 views

Have cropped digital sensors reached their peak design limits?

APS-C and smaller sensors seem to have plateaued off in terms of their megapixel counts, possibly due to diffraction limits. The ISO performance of these sensors has not increased substantially in the ...
5
votes
5answers
294 views

How long until a point-and-shoot becomes obsolete?

The general rule of thumb with computers is that if you've owned one for more than a few years, it's likely obsolete and nearly any new model will vastly outperform it. Does the same hold true for ...
4
votes
5answers
3k views

Is it worth buying a 5D Mark I or an EOS 1Ds II today?

I've been taking photographs for a while, and have started to think about moving to full-frame. I'm on a very limited budget, but I currently have a good macro lens and am quite willing to buy ...
4
votes
4answers
5k views

Is the Nikon D5100 really better than the D200?

On a wedding occasion, I learned the photographer was using D200. I have D5100. I quickly jumped in and checked the prices on Amazon (it was 2.5x expensive) and then compared it on snapsort. Now the ...
4
votes
2answers
138 views

What is the nature of noise in small-sensor cameras, and can it be overcome in the future?

What is physical nature of noise in small-sensor cameras? Is is thermal noise in the semiconductor? Is there hope that in couple of years, noise in small sensors will disappear, and small sensors ...
4
votes
1answer
124 views

Are modern digital cameras better at dealing with blown highlights than they used to be?

Several years ago, I asked Why are blown highlights particularly bad in digital photography?, and if you look there, you can see some fairly convincing answers as to why this is. In an answer to a ...
3
votes
2answers
224 views

Does the quality of images from a small sensor improve significantly year-to-year?

As I understand it, larger image sensors on digital cameras make for higher quality pictures, but does a given size sensor produce significantly higher quality this year from the same size sensor of ...
3
votes
5answers
12k views

Does Expeed 3 make D3200 better than D5100?

I am thinking of my buying my first DSLR and have narrowed down to D3200 and D5100. Given that their price is the same, I am having a tough time figuring out which one to buy: D5100 is the more ...
3
votes
2answers
5k views

T4i 650D Vs. T3i 600D - Is it worth paying $350 more?

What are the advantages and disadvantages between the two or the features that comes with price difference? Is it really worth paying $350 on average more for the T4i?
3
votes
5answers
295 views

Are images taken with newer DSLRs sharper than those taken with old ones?

When I compare images that I shoot with my 30D against images shot with a friend's 600D, the 600D consistently produces sharper images than my 30D. This is true even when the images are viewed at the ...
3
votes
3answers
116 views

Suggestion for books tracing the evolution of photographic equipment [closed]

Could you please suggest a book that Tracks the evolution of photo equipment from inception to modern times Has diagrams and cutaways of equipment and mechanisms, including shutter and aperture ...
2
votes
4answers
784 views

Upgrading EOS 350D or changing to full frame for low-light improvement?

My question is as follows: In 2006 I bought a Canon EOS350D with a Tamron 18-200, which was a great choice for shooting pictures on vacations, not having to carry around much, etc. Now, this seems ...
2
votes
3answers
8k views

Why is Canon 60D considered 'better' than Canon 700D?

So Canon 60D is considered a semi-pro machine, but it's like 3 years old, while the 700D is a year old and can pack the same punch it seems from the specs. Does the 60D have anything that the 700D ...
2
votes
2answers
239 views

Is it bad to use old lenses on a new camera?

Ever since I started out with photography, I've been using an old, used Sony Alpha 200 DSLR. I was mostly okay with its mediocre performance, but lately my demands have increased, and I would like ...
1
vote
4answers
259 views

Have DSLR sensors made improvements since the transition to CMOS?

I know that CMOS sensors appeared in the beginning of 90s, and evolved up to 2000s. I'm mainly talking about high ISO photos quality. For example, Canon 5D mark 3 has better results in high ISO tests ...
1
vote
2answers
2k views

Is my Nikon D3100 a better camera than my friend's D300?

Within the Nikon D range of cameras, which would you say is a better camera? The Nikon D300 or the Nikon D3100? I am new to photography, and have the D3100 and a friend of mine has the D300 and she's ...
1
vote
1answer
178 views

EOS 40d and an EOS 1d original - which one should I use?

I've been trying to figure out the comparison of the two - I've gone out onto the 'field' and taken excellent photos on both cameras. The question is mainly this, given the substantially better ...
0
votes
4answers
167 views

Replace existing 2006 Canon Rebel XT or repair it?

I have an 2006 Canon Rebel XT with the default (16-18mm???) lens. In all these years I haven't cleaned the lens or camera and I have got a little scratch (visible on pictures only when noticed ...
0
votes
0answers
89 views

Technically what happens that aperture affects Depth of field [duplicate]

Possible Duplicates: What exactly determines depth of field? Technically, why is the out of focus area blurred more when using a bigger aperture? It is obvious that the aperture affects ...
-5
votes
8answers
391 views

Why does DSLR technology seem so primitive?

I am curious to know why today's DSLRs (including the top of the line ones) have: A primitive interface Do not do wifi out of the box Do not have touch interface Do not have full fledged OS like ...