9 votes

Can I use aperture priority mode with a constant aperture lens?

Yes. Constant Aperture is a reference to a zoom lens' maximum aperture at all focal lengths. It does not mean that it is the lens' only available aperture setting. That would be a fixed aperture ...
Michael C's user avatar
  • 175k
7 votes

Can different ISO settings be preserved when switching between different Exposure Modes on Canon DSLRs?

No. This sort of feature is available on higher level Canon cameras where you can have one or more sets of "custom settings", but not on an entry level camera like the 1300D.
Philip Kendall's user avatar
  • 21.9k
7 votes
Accepted

Why did the shutter speed increase when I raised ISO and lowered exposure compensation in Aperture Priority mode?

Both of your changes were in the same direction with regard to shutter speed, not in offsetting directions. Keep in mind that exposure values (EV) with higher numbers are for brighter lighting ...
Michael C's user avatar
  • 175k
6 votes
Accepted

How can i shoot in aperture priority with auto ISO?

In A,S,P,M modes, you have to turn Auto ISO on, in Setup menu, see manual. Auto ISO is automatically ON in Auto mode, but is not automatically ON in A,S,P,M modes, not unless you turn it On. User ...
WayneF's user avatar
  • 12.9k
5 votes

Can I use aperture priority mode with a constant aperture lens?

There are two misunderstandings in your question. As covered already by Michael and flolilolilo, "constant aperture" means that the widest available aperture (smallest f-number) is constant across ...
David Richerby's user avatar
5 votes

Why did the shutter speed increase when I raised ISO and lowered exposure compensation in Aperture Priority mode?

Originally you asked the camera to overexpose by one stop. When you set exposure compensation back to 0, the exposure time was halved. When you increased the ISO sensitivity by a factor of two, the ...
ad42's user avatar
  • 844
5 votes

Can I use aperture priority mode with a constant aperture lens?

Yes. Usually, the f/2.8 notation just tells you the maximum aperture (greatest diameter), but it does not say anything about the smallest aperture (smallest diameter). E.g. a 70-200 mm f/2.8 can ...
flolilo's user avatar
  • 6,467
4 votes

How can I lock the aperture setting on a 5DMkIII with long exposures in Av mode?

In your situation I would be using manual mode. If you really want to use Av mode, then you must disable "Safety Shift". You can disable it in the custom function menu. It is at the bottom of the C....
Mike Sowsun's user avatar
  • 12.2k
3 votes

Can different ISO settings be preserved when switching between different Exposure Modes on Canon DSLRs?

Is there any way to make ISO settings independent based on exposure mode selected, meaning we could set ISO 200 for M mode and ISO 400 in Av mode and when the dial is switched from M to Av, the ISO ...
Michael C's user avatar
  • 175k
3 votes
Accepted

Nikon D7000 thinks aperture of non-cpu lens is always 16 and overexposes photos

Have you checked the mechanical linkage on the body that reads the aperture setting from objective to see if it is stuck? If it is not stuck try moving it by hand and see if the aperture reading ...
Euri Pinhollow's user avatar
2 votes
Accepted

What is different between "M" and "A" with exposure compensation modes?

If the shutter speed, aperture, ISO and other camera settings are all the same, photos should be identical. What M mode does give you is the ability to go beyond the max exposure compensation that Av ...
Chinmay Kanchi's user avatar
2 votes

How to determine the exposure mode used in two photos if they have the same ISO value and the same exposure value?

In addition to shutter or aperture priority with fixed ISO, options include: full auto or program mode a program-shift mode, if the camera has one (from this camera's manual, it does not, but other ...
mattdm's user avatar
  • 143k
2 votes

shooting in Av (Aperture Priority) Mode, but set Aperture deviates from what I set

I believe the answer to the question is that I needed to change the flash from first curtain sync to high-speed sync. I thought I changed that setting before I started shooting, so that would limit ...
Walter's user avatar
  • 333
2 votes

The best setting for Canon 70D for my application

scottbb has more than adequately covered the pure photography side of things, so I'd like to add another aspect. Bouncing a camera repeatedly over a bumpy field on a hard mount & expecting it to ...
Tetsujin's user avatar
  • 23.2k
2 votes
Accepted

The best setting for Canon 70D for my application

While the actual questions you asked aren't very broad in scope ("should I use Av/Tv/Manual mode?", and "Is the 18-55 STM lens useful for my application?"), I think the details of ...
scottbb's user avatar
  • 32.5k
2 votes

How can I produce high quality images of field ranges for training sets?

If I understand correctly, it sounds like what you want is a Tilt/Shift Lens. This will allow you to adjust the focal plane to be more in line with your shot. Some quick examples from the web: Marc ...
user10216038's user avatar
  • 2,241
1 vote

Nikon Z50 Auto Setting Focus Issues

There is definitely some user error and lack of understanding here... I'll hit a few basics: With the mirrorless cameras, anything that affects the quality of the image in the viewfinder will affect ...
Steven Kersting's user avatar
1 vote

Nikon Z50 Auto Setting Focus Issues

What was your previous camera? I think two things you may be missing are that your new camera has a much larger sensor, which will make the depth of field shorter, plus with only the kit lens you don'...
Tetsujin's user avatar
  • 23.2k
1 vote

How do I change the ISO and shutter speed settings in Aperture Priority mode on a Canon DSLR?

When in the "Creative Zone" exposure modes (P, Tv, Av, M), you can select the ISO speed setting using the "ISO" button on top of the camera or by going to 'Menu → Shooting (red) Tab 2 → ISO Speed'. ...
Michael C's user avatar
  • 175k
1 vote

How to avoid noise in Aperture Priority mode arising due to auto-ISO?

In the general case, if you find that the images as taken by the camera are too light or too dark, you can use exposure compensation. If you shoot subjects that are very different from their ...
xenoid's user avatar
  • 21.1k
1 vote
Accepted

How to avoid noise in Aperture Priority mode arising due to auto-ISO?

Regardless of what mode you use, it's helpful to know how aperture, shutter speed, and ISO relate to each other to keep exposure constant. Open the aperture (smaller F-number) ⇒ more light reaches ...
xiota's user avatar
  • 26.9k
1 vote

Why does Shutter Speed go below the Minimum Shutter Speed when speedlight is on in Aperture Mode on my Nikon camera?

The D7200 manual says that in A or P modes, the ISO menu Minimum Shutter Speed is the threshold concerning if ISO increases or not. It does also say that in Auto Mode that the camera will choose ...
WayneF's user avatar
  • 12.9k
1 vote

Why did the shutter speed increase when I raised ISO and lowered exposure compensation in Aperture Priority mode?

In addition to the (correct) other answers, you need to understand that the camera measures the incoming light in specific spots. Unless you use a tripod and keep everything exactly aligned, each shot ...
Aganju's user avatar
  • 2,022
1 vote

What is different between "M" and "A" with exposure compensation modes?

Auto with exposure compensation (at a fixed ISO) can give you the same lighting levels as manual, unless you want a very under- or over-exposed image (according to the meter in the camera). What it'...
Chris H's user avatar
  • 3,812
1 vote

Is wide aperture required when shooting faraway objects in low light conditions?

You're correct in saying that you can pick any trade-off of shutter speed and aperture size that you want, so long as you obtain the same exposure (or as you say, number of photons hitting the sensor)....
Myridium's user avatar
  • 560
1 vote

Is wide aperture required when shooting faraway objects in low light conditions?

As you hinted, the number of photons per pixel per exposure depends linearly on exposure time and also linearly on lens area, which goes as the square of the F-stop. How you optimize depends on ...
Carl Witthoft's user avatar
1 vote

Using a remote in Av mode using a Canon EOS T4i

You can use an infrared remote, such as the RC-6 or its generic clones, with either Aperture Priority, Manual, or any other exposure mode with your EOS Rebel T4i/650D. The key considerations are to ...
Michael C's user avatar
  • 175k
1 vote

Is the AF Nikkor 35mm f/2D lens compatible with my Nikon D5200?

See this link for an answer to almost every lens compatibility question: http://www.kenrockwell.com/nikon/compatibility-lens.htm#dslr So YES, your lens will automatically adjust exposure in PSAM ...
Gabe Rogan's user avatar
1 vote

Does Av mode apply any in-camera software push-pull (Canon 6D)?

Most cameras don't set much of anything steplessly. They will meter in very precise graduations but when converting that metering to exposure settings it is going to be rounded to the nearest ...
Michael C's user avatar
  • 175k
1 vote

What advantages does manual mode have over aperture priority mode?

I find the question similar to "what advantages does shutter priority mode have over automatic mode?" The answer is, plenty! For example, this picture was taken with shutter priority mode to capture ...
juhist's user avatar
  • 6,728

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