Alley in Pisa, Italy

by Lars Kotthoff

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15

Analogue amplification (pre-digitization) is the best way to implement a variable ISO sensitivity. When you do so you are only amplifying the photon noise. When you amplify the digital data (i.e. by multiplying all the values by a fixed amount) you amplify the photon noise, the read noise and the quantization noise, leading to more noise overall! Most Canon ...


13

Many confused answers here... Eruditass got it right, it's all about the viewfinder. Actually it's mostly the "ground" glass, which is not a ground glass anymore: it's a microstructured glass, optimized for light transmission with slow lenses, not for ease of manual focusing. Something a bit like a Fresnel lens. The eyesight, has nothing to do with this ...


10

The tamron 28-300 is a fascinating and frustrating lens. It doesn't go wide enough (on a cop sensor camera like the 500d or 7d, I'd want the wide angle for landscape to be more liky 15-17 and not 28; it makes me want to add the sigma 10-20 to my arsenal). And at the telephoto end, it goes soft like most super zooms do. I try not to use it much past 28-150 ...


10

See http://en.wikipedia.org/wiki/SDHC#.C3.97_rating Class 4 is 32MBit/s (4MByte/s) and Class 6 is 48MBit/s (6MByte/s). You probably shouldn't worry about this if you're just shooting JPEGs, but if you're going to take RAW shots in quick succession, or, as you said, take video, it may make a difference. I can't speak for all camera manufacturers, but if the ...


10

As someone who owns a 450D myself, and who has a friend who owns a 500D, I would say the 500D is worth it. Functionally, there are few differences. The 450D has a 12.2mp sensor, while the 500D has a 15.1mp sensor. Not a huge difference, but enough to make a difference. The 500D supports two stops higher ISO (6400 instead of 1600...12800 is digitally ...


9

This article claims to provide a method for getting the shutter count for the 7D. In short, you install gPhoto2 and run the command: photo2 --get-config /main/status/shuttercounter Version 2.4.11 (released on Apr 17th, 2011) has been tested and works with 500D. A little warning: under Ubuntu Linux, my first attempts failed because of the following error: ...


8

In the 550D you can use Magic Lantern. Just install it, press MENU and then DISP. The shutter count will appear in the bottom of the screen. Updating my answer, the current build (as of today 11/17), shows you how many shutter actuations the camera have, and also tells you the number of pictures taken and LV switches + quick focus attempts


7

You do not specify why your current lens is "not sufficient", but the following are all excellent lenses for wildlife photography, depending on your exact requirements: Canon EF 200mm f2.8L II USM (~£600) Canon EF 300mm f4L IS USM (~£1000) Canon EF 400mm f5.6L USM (~£1000) The latter two are £100 over budget, but I don't think you would be disappointed ...


6

There are repair shops that will give you an estimate of repair cost, or even better a no obligation quote. Then it's a simple case of comparing the repair cost with the used value of the equipment (trawling ebay is a good avenue for this), giving a slight bias toward repair to make up for the risk of buying used.


5

The 450D is plenty camera for anyone taking up photography. I would spend the money saved on better lenses.


5

I've checked in both the Aperture help and in the Apple Aperture's Pro Book and there is no reference to focus points :-/ On my side, as I'm only using a manually selected single focus point, I've always seen a single red (thick) square which is my focus point. All others are thin white. See below: Could you show us a picture where you have the four ...


5

It's the lights indoor, they're usually "warmer" and that lends a color cast to images that the camera can normally compensate for. What you want to look for is the "white balance" settings for your camera. I suspect that yours has been set on "Flash" rather than "Auto". The manual, if you don't have it, is available online. Page 96 should have the info. ...


4

If you're primarily interested in video, the Nikon option offers 1080p and 24 frames per second with autofocus. This exceeds the 500D all around, so if you have no lens investment in Canon, I'd have to advise the D3100.


4

If this is the f/3.5-5.6 lens, then as you zoom out the max aperture is reduced ( f/3.5 at 18mm, but f/5.6 at 55mm). Autofocus will struggle in lower light at the f/5.6 end. You can try to find something high contrast to focus on, or use manual focus if you have to. If you focus at 18mm then lock focus and zoom in, that won't necessarily still be in ...


4

They never made an alternative firmware for the 500D in the end. There is nothing that will improve the video recording for this camera. You could however use something like MagicLantern for other tweaks to the cameras operation. Other cameras soon came out after the 500D with the improvements people wanted for it, so it seems people gave up on finding ...


4

Unfortunately, your camera does not offer built-in wireless control of your flash. In order to control your flash off camera, you need to purchase the Canon ST-E2. At this date, only the Canon 7D, 60D and 600D (Rebel T3i / Kiss X5) offer built-in wireless control of flash, but I assume that will change over time. There are solutions from PocketWizard, and ...


4

The lenses are a fairly straight forward an economic decision. The camera perhaps less so as various things wear out and fixing one thing MAY leave another fail soon afdter. Or not. If the glass is good and the lens is not physically beaten to death then you can get a quote for repair and see how the cost compares to a new or equivalent lens. I had a ...


4

Safe disconnect To safely disconnect your camera just wait until the red light of the memory card has stopped blinking and then pull out the USB cord. The light is positioned in the lower right corner next to the trash button. When it doesn't blink it means that no read/write operations are taking place. Explore files through Finder By removing the SD ...


3

Invariably, you will buy a longer lens and then realise that it doesn't get you as much closer as you think. The advice above will cover your lens choices suitably though. With wildlife photography the key, in combination with an appropriate telephoto lens, is doing your homework on the animals you're interested in photographing at that specific location. ...


3

While there is not a lot of information out there on this (and thus it is possible it is actually expected behavior), all official Apple sources describe the behavior of the "Show Focus Points" feature working as LudoMC describes in his answer, and nowhere can I find any reference to the feature working in any way like you're experiencing it. Based on that, ...


3

I'd recommend reading an article from Philip Bloom, a professional filmmaker who uses DSLRs on a daily basis. Some time ago he reviewed a bunch of options http://philipbloom.net/2010/08/19/whichdslr/ I have no experience with Nikons, but for Cannons, if you can, I'd go one model up - 550D. It has 24p and overall is a ridiculously good camera. Difference ...


3

There isn't anything 'Normal' which you can do with 500D but can't with 450D. 450D is a very good entry level DSLR. But I'd suggest, if you can, wait a little longer and buy 550D, definitely a bigger bang for your buck. You can compare 450D and 500D here: http://snapsort.com/compare/Canon_EOS_450D-vs-Canon_EOS_500D


3

I found a solution that worked on my 550D (Rebel X2i), the page is about the 5D Mk2 so I guess it works on all canons. http://www.slashgear.com/how-to-remove-stuck-pixel-on-your-digital-slr-2227392/ The relevant part: Test for dead pixels : Left lens-cap on, set camera to exposure 30 seconds black-out image at varies ISO settings. Fix for ...


3

If I look at the specs of the 500D, there doesn't seem anything like 1/3 EV ISO increments (while the likes of the 7D do offer that). And this discussion seems to confirm that the 500D only offers full-stop ISO increments when not in automatic mode. Your first suspicion looks like the good one: it's not high-end enough...


3

It seems to me, you’re at the point where really it’s more about what works for you, so it’s going to be hard for anybody to give a definitive answer. As you’ve said, each decision has different tradeoffs and really it’s about which one’s you want to make. Taking your current setup, you already have a Cannon 50-1.8 which is towards the upper end of your ...


3

The first option, and i guess that is what you activated can be found here: The Canon T2i's Drive setting also accesses three Self-Timer modes, which open the shutter 10 or 2 seconds after the Shutter button is pressed, giving you time to dash around in front of the camera. The third mode will take a programmable amount of shots (2 to 10 shots), ...


3

The Canon T2i actually uses a newer battery pack - the LP-E8 as opposed to the T1i that used the LP-E5. The LP-E8 has better battery performance, but unfortunately you cannot use them interchangeably. This is from the PCWorld Review: Canon upgraded the battery pack to the LP-E8 instead of the LP-E5 that powers the T1i. The good news is that battery ...


3

It is possible that your LCD needs replacing. Without any pictures of the actual screen it's hard to tell but generally you can only adjust the LCD screen's brightness and not the colour. Does this happen in the menu as well? If it only happens on live view then it could be the settings. If it's on the menu too then likely the LCD is faulty. I would ...


2

It's to do with the focussing screen, however I don't profess to completely understand all of the effects you mentioned. The focussing screen in modern DSLRs is made of laser etched glass in order to facilitate manual focussing and transmit as much light as possible for slow lenses. With old fashioned ground glass screens, the micro-structure of the glass ...


2

One of the product shots actually uses a Canon body: the kit lens is also one of the shortest in the current product line (the only one that is physically smaller that I can think of is the 50/1.8; so I would expect it to fit. Of course, it is always worth visiting your local friendly retailer if you're unsure about ordering online.



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