Serene Life

by garik

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Tag Info

Hot answers tagged

17

It sounds like you don't understand exposure. If you change to an all manual mode, then its expecting you to adjust shutter speed, aperture, and ISO all in concert - 'manually'. If you set a faster shutter speed, you'll need to raise your ISO or open your aperture more to adjust for the fact that you're letting in less light. The same with a lower shutter ...


6

Since the limitation appears to be with regard to specific positions of the aperture diaphragm it is most likely a mechanical limitation of the camera's design. The limitations you have described are clearly outlined on page 49 of the Canon PowerShot G7 Advanced Camera User Guide, so this is expected normal behavior for this camera. As the focal length ...


5

Absolutely. There are several advantages to this and is something I often do. Normally I travel with one DSLR plus a backup and a small social camera . The backup is often a second DSLR which lets me share lenses, batteries and charger. It gives me redundancy but no more capabilities. Often I take an ultra-zoom instead of the DSLR when I expect to shoot ...


5

As Matt stated, there is the Canon Hack Development Kit (CHDK). However, the SD780, along with many other compacts, do not have an iris for aperture control. Basically the CHDK will allow you to control the ND filter, which acts as a fake aperture. It will only allow you to use longer shutter speeds (or increased ISO), and will not increase depth of ...


5

I looked up an SX210 manual online, and it says that there is an external power port. Look at page 156 of your user's manual; the online guide I found recommended the ACK-DC30 kit. You plug a coupler (which has the same form factor as a battery) into the battery bay, and plug the AC cord into a slot in the battery door. The ACK-DC30 is $50 on amazon; you ...


4

You would be basically deciding on image quality versus zoom capability. The S100 has a bigger sensor, handles higher ISOs better and offers a faster lens. On the other hand, the SX260 offers you a lot more optical zoom. There is no clear winner here, it all depends on what aspect you value the most in your shots. The ability to zoom further or the ability ...


4

(1) This is a guess only - as many people report this problem on the internet increases the possibility. There may be a power supply filter capacitor that has 'dried out' with age. One possible solution is to try adding a capacitor across the battery terminals to see what happens. Having a small amount of electronic experience would help. As large a ...


3

It should support the same shutter, regardless of aperture. If designed with separate shutter and iris like DSLRs. This is not the case with shutters where the aperture and the shutter is in fact the same part. So the wider it is, the longer it has to travel to open up and close. Usually referred to as diaphragm- or leaf shutters. These are typical in top ...


3

That does sound like LCD damage. The times that I have seen rainbow patterns like you describe, the only fix was a new screen. I'm not sure how much that would cost, but you could contact Canon and get a repair estimate. Unless the cost was pretty low, I would lean towards using it as long as you can and saving for a new model.


3

The "ancient" Canon EOS 300D uses phase detection autofocus - typically a much faster way to achieve focus over contrast detect autofocus such as what your G12 is using. See: What is the practical difference between phase-detect and contrast-based autofocus? There isn't much you can do here, your best bet is to center over a high contrast area in the shot. ...


3

You might want to try installing chdk on your G12 and seeing if you can tweak any of the performance via it. If you haven't heard of chdk before its basically a group of enthusiasts who produce custom firmware for cameras to enhance their functionality. See the linked page for your camera Hope that helps!


3

How to fix this issue? Send the camera in for repair.


3

These problems were encountered when trying to compensate from the bright sunlight to the dark of night for sunset and sunrise events. There've been a couple of "sunset" scripts created long ago to circumvent these problems, as well as trying to adjust for exposures when the light levels are far too low and the camera's own exposure meter can no longer ...


3

Well, I bought one as a gift and the owner is very happy with it. I cannot vouch first-hand on image quality but I found it an excellent value because it is one of the cheapest modern cameras with full manual controls, a wide-angle lens and AA batteries, particularly since Canon has been removing manual controls from their A-series. I'd say there aren't too ...


2

The size of your circle of confusion is determined by the effective size of the front element. Apertures effectively shrink the front element by blocking light passing through the edges of the lens, and only allowing light hitting the middle of the lens to pass. Since your camera (as Eruditass points out) does not have its own aperture, you can't do this ...


2

I wouldn't recommend doing this. You have no idea whether the 4.3v marking on the camera is some engineer being conservative (in which case the camera can probably take something a bit higher... maybe), or that there's a component in there that's gonna fry as soon as anything over 4.3v hits it. Seriously, don't take chances unless you don't really care if ...


2

To directly answer your question, is a superzoom compact useful for its wide focal length range - absolutely. Is it just as good or nearly as good as a DSLR and a lens with an equivalent focal length - not even close. You have to expect tradeoffs with a superzoom, weather you are talking about a SLR lens superzoom or a point and shoot camera superzoom. They ...


2

Rushing - more later if it looks like it may be useful: I do not have any experience of this particular camra. But, working on general principles. Slots at A and B are locking slots. A pin enters the slot when the door is closed and then moves into locking position under the overhand when the door is moved sideways. The red arrows at A show the path that ...


2

I keep swapping between 2 pair of batteries, I too have this cam and have the same problem. I know this is a temporary solution but hope this will work.


2

It is entirely possible that both may be accurate. Video takes much more power than photos as it has to leave the screen on and be processing all the time. The image processing for recording is generally the biggest power drain, followed by the LCD screen and then the GPS. Turning off or dimming the display, turning off GPS and only taking photos rather ...


2

It is quite normal for a leaf shutter to support a faster shutter speed when the lens aperture is physically smaller, i.e. at f/8 instead of f/2.8. So the question becomes 'does the Canon G7 have a leaf shutter?' There's a simple test for that. Set the camera's shutter speed to 1/60s and aim it at a blank wall. Force the flash to fire and take a photo. The ...


2

I want to capture the image as it appears to the eye If you make some research, you will find than the human eye as a very wide dynamic range compared to a camera. That means that an eye can see details in dark area and at the same time details in bright ones. As a camera sensor works somehow linearly, it can't do that. It is as if you were trying to ...


2

When taking a photograph, the image isn't created immediately, but over time. A higher shutter speed provides less exposure to the light, and thus the resulting image will be darker than a slower shutter speed that allows greater exposure, if all settings are the same. This can be compensated by making your camera more sensitive to light (raising your ISO, ...


2

According to the Manual: No. The longest shutter time is 15s, even in Manual Mode. No mention of a Bulb mode. Your best shot at achieving functionality is by trying out the CHDK alternative firmware, which allows an override of the Shutter Speed values, letting you select how long you want. It seems the CHDK is available for the SX160 IS (cf. here). Try at ...


1

The Canon G12 specification indicates that the screen is a TFT. For that kind of screen the issue you showed it should be direct connected with Vertical Synchronization (Vsynch) of the image. From the indication you supplied it seems that the gap is fixed and not moving and due the fact that some colours channel changes with touching the screen, it could be ...


1

Canon specifies the battery-life of the SX280 HS as being 210 shots-per-charge, according to the CIPA standard. This is with 50% flash use, so if you turn it off, you should get at least 260, maybe 300 but not much more. This is probably with the GPS off since CIPA does not mandate it to be on. In reality even this will vary a lot depending on ambient ...


1

The Raspberry Pi has a lot of weirdness happening when it comes to SD cards. What will have happened is not a broken card - although it would be reasonable to expect people who've not had the experience to assume that it is. Actually the problem is that Linux on the Pi has knackered the 'partition table'. That is not overwritten by either the in-camera ...


1

Usually Cannon uses Picture Transfer Protocol (PTP) and Media Transfer Protocol (MTP) but I'm not sure you can control your powershot with them. Have a look to Gphoto maybe someone has already done the work. The simplest way with your Arduino is to "push" the shot button with an external device a "meccanic finger" or if you don't care about your camera ...


1

My Sony point and shoot sometimes needs a push to retract it when turning it on. Normally it does it itself and then restarts. Other times I gently press the lens while starting the camera, then it retracts, goes out and retracts again and reboot.



Only top voted, non community-wiki answers of a minimum length are eligible