Spring 2012

Spring 2012
by ani

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25

It doesn't really matter whether shutter activations are in burst mode or not. What matters is that they happen. 500 shots per day for 150 days is 75,000 shutter activations! Canon no longer provides shutter ratings for the Rebel series but back when they did the oldest Rebels and later lower priced models had ratings of 50,000 activations while the later ...


19

What is this red dot next to the viewfinder and live view button on the Canon EOS Rebel T6 (1300D)? A red dot is a common symbol for the record function, and as on other EOS bodies that button serves the dual purpose of starting Live View mode and starting and stopping movie recording. The icon on the button itself is the Live View icon, and I think the ...


9

From what I've read online, Err 30 is almost always a shutter failure, consistent with Canon's documentation for this specific error ("a malfunction with the shutter has been detected"). You should be able to get the camera fixed under warranty; if not, replacing the shutter would cost about $200 to $300—not worth it for a 1200D. While newer Canon EOS Rebel ...


7

Focal lengths I prefer using lenses in the Normal range of 35-50mm (35mm film equivalent) for newborn sessions as I shoot most of them on site and often in cramped settings. I queried the past year of newborn shoots and had the following distribution of lenses to images on a full frame camera: It's worth noting that for portraits many people will stay ...


5

The reason the focus confirmation light does not function in AI Servo mode is because the camera never stops tracking the subject and adjusting focus as necessary. The green focus confirmation light in the lower right corner of the viewfinder is an indicator that AF has been locked and has stopped measuring focus. That's the last thing you want to happen in ...


5

In addition to Kevin's answer -- fast shutter speed, experiment with AF modes -- here are three more tips that will help you reach success: Use manual focus. The fastest autofocus systems are too slow for some uses or are fooled too easily for some uses. But manual focus lets you avoid those troubles! Prefocus where you know the motorcycle will be and as ...


4

When you're in manual mode, you can shoot yourself in the foot all you want. This includes underexposing to the point of having a black frame. Check your meter. Unlike all the other automated modes, in M mode, the camera doesn't automatically adjust your settings to shove your meter's "needle" to 0. This is actually a feature, not a bug. But if you haven'...


4

I have tried changing the aperture and shutter speed but it didn't help. Not to state the obvious, but what you change the aperture and shutter speeds to matters a lot. What were the settings you used? Also, check the ISO and exposure compensation settings. A good way start is to take a photo in Program mode. If the exposure looks good, check the values ...


4

Does this make the lens better than an L Lens? It all depends on what way you mean when you use the word "better": Sharper at common apertures and focal lengths? At the center of the frame or over the entire field of view? Less chromatic aberration at a particular focal length and aperture? Less light falloff at a particular focal length and aperture? ...


4

You actually have all the information you need. CR123A is what you need to buy. They happen to be 3V, and up to 1500mAh, lithium chemistry but not rechargeable. You should be able to find them in a camera shop, a chemist, or even a large supermarket, but it's easy and cheap to order them online. There is a rechargeable in the same shape, with a slightly ...


4

No. It's not a mount issue—it's a glass issue. Sigma's mount conversion is to change between different mount systems so it will physically mount and electronically communicate to the system of your choice. Canon EF and EF-S lenses are actually still in the same mount/signaling system. And chances are good your 17-70/2.8-4 will actually mount and ...


3

CR123 is a Lithium battery with a nominal value of 3.7 volts. If you were to measure the voltage it would be between 3 and 4. Being a battery the voltage will change as the battery is used. (It can even change based on temperature, age and many other factors.) There are tons of different names and numbers for the same battery… DL123a, CR123, EL123, K123 ...


3

Canon will almost certainly always have a version of Digital Photo Professional to include with their cameras. Apple may not always support Aperture. (Yeah, I know. Hindsight's always 20/20)


3

The diagonal of the 70D 22.5x15mm sensor is 27.04mm. The diagonal of the 700D 22.3x14.9mm sensor is 26.82mm. That's a difference of less than 1%. The smallest APS-C sensor Canon has released is 22.2x14.7mm (EOS 1100D/Rebel T3). The largest is 22.7x15.1mm. This sensor first appeared in the 10D which was introduced before the EF-S lens system. EF-S lenses ...


3

This and all similar questions are best answered by looking at websites designed for the purpose. One approach is to look at vendors like B&H Photo, which offers convenient filtering. For example, Canon EOS EF or EF-S lenses classified as "wide" or "wide zoom" with an aperture of f/1.4. Or, use a website dedicated to the task, like the Neocamera database....


2

This is a problem I have come across and solved using other usb devices to connect to a virtualbox VM. So hopefully this will solve your problem. The solution is to set the number of CPUs in the virtual machine to only 1. You do this from the Virtual Box Settings for the virtual machine. Power down the Virtual Machine. Then in its settings select 'system' ...


2

I know this is an old question, but I just tried using an iPhone to record through my DSLR viewfinder and it seemed to work ok.


2

Both Nikon and Canon use ISO-compatible flash hotshoes on their cameras and feet on their flashes, so the Canon flash will fit on the Nikon hotshoe, its sync voltages are well within the limits a Nikon hotshoe can sustain, and the ground signal (rails) and sync (fire signal--the pin in the center of the foot's square) will be recognized and work, so the ...


2

The SX40 uses a rechargeable built-in date/time battery. They are supposed to keep working for about 7 years, but it appears yours has died a little early. It is not user replaceable. You will need to continue setting the date each time you remove the main battery, or you could have Canon replace the date/time battery. Canon SX40 User Manual


2

The use case that will reveal the most separation between the two is with longer focal length lenses that have wide apertures. The 70D includes the option to calibrate the camera to individual lenses via Auto Focus Micro Adjustment (AFMA), the 760D/Rebel T6s does not. AFMA allows the end user to adjust for the differences in manufacturing tolerances between ...


2

Based on the note on page 74 of the PowerShot SX530 HS User Guide and absent of any instructions as to how to disable it, I would say there is no way to disable this using the official Canon firmware.


2

Try to look at the histogram of the pictures. Is it unbalanced to the left? If so, you may be tricked by the preview screen. Also, could it be due to the screen you are using, which has poor contrast or low backlighting? Note that, typically, laptop screens don't have much contrast unless you set the backlight high or if exposed to sunlight.


2

No, you can't. The ST-E2 is like a headless 550EX--it doesn't grok/speak the commands from the camera menu. You'd need a 580EXII or later hotshoe unit as master to have that kind of control. If you don't have the cash to spring for the RT flash system or you want a small optical master, your best bet is probably to ditch the ST-E2, and get a 90EX instead. ...


2

Can you put a small piece of gaffer's tape over it? Should be easy to cleanly remove when you want to. For some controls I've used a dab of hot glue, sometimes with a piece of teflon tape covering the knob surface itself. If you build up some glue against the teflon tape, then remove the tape, you can sometimes create a "semi-protected" state where it can ...


2

You could remove it altogether. Set the diopter wheel at the adjustment you desire. While holding the adjustment wheel to prevent moving it use a (correct size & type) screwdriver to remove the screw in the center of the wheel. Lift the wheel straight out of the housing. Replace the screw to close up the opening. If you don't want to do anything ...


2

It's all covered on pages 258-265 of your 700D Instruction Manual. You may use either the supplied standard A/V cable or an optional HDMI cable for high resolution playback. The only way to do it wirelessly would be to use an Eye-Fi card to transfer the images to another device (pp. 311-13 of the Instruction Manual) as they are shot and then play back the ...


2

I'm guessing you actually are seeing best when it is set to the other end of the adjustment range: +1 diopter. Just as someone can have 20/20 distance vision and need reading glasses with a positive diopter to see things that are close, even if you have 20/20 or better distance vision your eyes may no longer be able to relax enough to focus on very near ...


2

I have not tried motorcycle events but have successfully photographed Ice Hockey matches with reasonable success so this advice is based on that. Set the camera to shutter priority (Tv) and start with a minimum of 1/250. You may can go faster if the light permits. The smaller the aperture you can get (while keeping the 1/250 min) the better to maximise the ...


2

In motorports photography a lot of images are panned captures. This is how the wheels get blurred and show motion. You can do this with a slower autofocus system such as the one you are using. Kevin's approach of focusing on a spot where a motorcycle will pass is very good advice. You can use manual focus or spot, whichever makes you feel more ...


1

Live view mode uses contrast detection to achieve focus. This means that if you try and focus on an area with low contrast, it can have trouble focusing. You can either switch to manual focusing (and zoom the LCD view to help achieve sharp focus), or move the point to an area with good contrast (ie an area with a dark area next to a light area).



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