Aperture setting help

cubsphan23

New member
I have a new 3400, and just picked up the 50mm 1.8G prime lens. At first i was tinkering around in Auto and Shutter mode and getting some nice pics. Then i moved into Aperture mode...still getting good pics, but it wants to take everything at a shutter speed of 1/4000. Does the shutter speed really need to be that fast to shoot at 1.8?
I don't see anywhere in aperture mode where it lets me change the shutter speed.

Please educate me!
 

Osantacruz

Senior Member
I have a new 3400, and just picked up the 50mm 1.8G prime lens. At first i was tinkering around in Auto and Shutter mode and getting some nice pics. Then i moved into Aperture mode...still getting good pics, but it wants to take everything at a shutter speed of 1/4000. Does the shutter speed really need to be that fast to shoot at 1.8?
I don't see anywhere in aperture mode where it lets me change the shutter speed.

Please educate me!
Depends. If you're shooting something that's already really bright and your aperture is set to something wide like f1.8 then the shutter speed will have to go high to close off some light. You can also check your ISO - if that is set high, the shutter speed will try to compensate and go high. Lower your aperture or ISO and​ you should be good.

Sent from my Nexus 6P using Tapatalk
 

Horoscope Fish

Senior Member
I have a new 3400, and just picked up the 50mm 1.8G prime lens. At first i was tinkering around in Auto and Shutter mode and getting some nice pics. Then i moved into Aperture mode...still getting good pics, but it wants to take everything at a shutter speed of 1/4000. Does the shutter speed really need to be that fast to shoot at 1.8?
I don't see anywhere in aperture mode where it lets me change the shutter speed.

Please educate me!
Your education begins here:


...
 

Lawrence

Senior Member
Study the Exposure Triangle that explains the relationship between aperture, shutter and ISO

Your post doesn't give enough info but I suspect your ISO is high and there is a lot of light available.
 

nickt

Senior Member
Make sure auto iso is turned off. Not to say it's a bad thing, auto iso is very useful, but having it turned on is not helpful to your learning.
 

cubsphan23

New member
Make sure auto iso is turned off. Not to say it's a bad thing, auto iso is very useful, but having it turned on is not helpful to your learning.

Agreed, but i've only recently just turned it on to sort of study my shots with what iso the camera was recommending. Though now the iso sensitivity / maximum setting are kind of confusing me becaise every few shots i get a red iso value and i'm not sure exactly why. Anyway, i still have a lot of studying and practicing to do
 

hark

Administrator
Staff member
Super Mod
Bottom line is in Aperture Priority, you select your aperture. You also set your ISO (if auto ISO is turned off). To make the image come out with the proper exposure, the camera will select the shutter speed. Either use a smaller aperture (higher f-stop number) or lower your ISO if possible to make the camera choose a slower shutter speed.
 
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