Motion Blur (Page 2): Thanks PHRubin understand this, this is making sense. Bob :sm24: :sm24:...

Transbuff1985 Loc: east central Iowa

PHRubin wrote:

As he said, motion blur is controlled by shutter speed ALONE! However, using a fast shutter speed alone will reduce the light captured by the sensor resulting in an underexposed photo. To compensate one increases the ISO (or opens the aperture more). Increasing the ISO alone does NOT reduce motion blur.

Thanks PHRubin understand this, this is making sense. Bob

tinplater Loc: Scottsdale, AZ

If using flash, your "blur" may be poor focus since the flash duration is very brief and "freezes" the subject, a light bulb shutter if you will....

rgrenaderphoto Loc: Hollywood, CA

Transbuff1985 wrote:

If a person is shooting ISO 1800, shutter speed of 1/125 can you still get motion blur or is camera shake or something else?
Thank you
Bob

Yes, you can get motion blur at any shutter speed/ISO combination.

mwsilvers Loc: Central New Jersey

Transbuff1985 wrote:

If a person is shooting ISO 1800, shutter speed of 1/125 can you still get motion blur or is camera shake or something else?
Thank you
Bob

It depends on the subject. If the subject is moving you will get motion blur even if the movement is relatively slight. Generally if you want to avoid motion blur,
again depending on the subject and how much it's moving, you should consider a shutter speed of 1/500 to 1/1000.

SharpShooter Loc: NorCal

Transbuff1985 wrote:

If a person is shooting ISO 1800, shutter speed of 1/125 can you still get motion blur or is camera shake or something else?
Thank you
Bob

Trans, welcome to the Hog!
I think what you’re asking is if a HIGH iso can prevent motion blur?
The iso and motion blur are not connected other than to say that if the iso is high, generally a higher speed can be used which might prevent motion blur.
Every time you double the iso, you need to double the shutter speed if the f-stop remains the same to keep the exposure the same, likely eventually eliminating motion blur!
SS

Transbuff1985 Loc: east central Iowa

SharpShooter wrote:

Trans, welcome to the Hog!
I think what you’re asking is if a HIGH iso can prevent motion blur?
The iso and motion blur are not connected other than to say that if the iso is high, generally a higher speed can be used which might prevent motion blur.
Every time you double the iso, you need to double the shutter speed if the f-stop remains the same to keep the exposure the same, likely eventually eliminating motion blur!
SS

Thanks SharpShooter beginning to understand all the info everyone have given me. Raise the ISO to Raise the Shutter Speed to stop motion blur. Shutter Speed is the determining factor for fast moving subjects. Thanks again Bob

canon Lee

Transbuff1985 wrote:

If a person is shooting ISO 1800, shutter speed of 1/125 can you still get motion blur or is camera shake or something else?
Thank you
Bob

Hi Bob.. If you have a steady hand than its the subject that is moving... I shoot at 1/1000th for movement... Big problems shooting in low light without a flash, because you need a fast lens ( 2.8 or better), a camera that has low noise at ISO 800~1500%, Just to get a shutter speed at 1/1000. Using a flash ( if permitted) it will have a strobe effect in that it freezes motion ( make sure your flash is set to Highspeed above 1/250th) .... In daylight it isn't a problem. I would shoot in Aperture priority setting the aperture to the Depth of field you want and keep an eye on the shutter speed.
If you are shooting sports it is artistic to allow a little bit of motion blur, IE. the pitchers hand slightly blurred...

Transbuff1985 Loc: east central Iowa

canon Lee wrote:

Hi Bob.. If you have a steady hand than its the s... (show quote)

Thanks Canon Lee, problem is don't have that good of a steady hand anymore. Use a tripod a lot anymore. Have 2 lenses that came with Canon T6 one is 1.35 18-55mm and 4.5 75-300mm. The 18-55mm have not much problem until I shoot Manual mode with manual focus, focus ring seems a little flakey, when I let go the lens can drop down a little and lose the focus point. Zoom is too heavy to hand hold steady. Plus I think the 18-55mm lens is noisy, could just be me, don't know, been reading reviews on this Canon lens and it is not very good. Thanks Bob

jerryc41 Loc: Catskill Mts of NY

Transbuff1985 wrote:

If a person is shooting ISO 1800, shutter speed of 1/125 can you still get motion blur or is camera shake or something else?
Thank you
Bob

That depends. If the subject is a plane coming toward you, probably not. If the plane is close and passing in front of you, definitely.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

Transbuff1985 wrote:

If a person is shooting ISO 1800, shutter speed of 1/125 can you still get motion blur or is camera shake or something else?
Thank you
Bob

Bob, you really need to practice panning while you shoot. My favorite shutter speed is 1/15 sec. or 1/30 sec.
The key is to not stop your panning when you shoot, you must shoot THROUGH the motion, not stopping as you punch the shutter.
But really Bob, have a son, daughter, grand son, grand daughter, neighbor, wife, brother, sister, anyone, run past you several times, change the shutter speed every time until you find the right combination. And, remember one other thing, the closer the thing is to you the more dramatic the effect.
But seriously Bob, you need to get out of the house, away from the computer, and shoot, shoot, shoot. Good luck Bob and keep on shooting until the end.

camerapapi Loc: Miami, Fl.

If the camera is not on a tripod and the lens has no VR a blurred picture is possible depending on the focal length of the lens, the movement of the hands and the movement of the subject.

R.G. Loc: Scotland

If you're still getting blur even when the subjects aren't fooling around inside the booth then it must be a focus problem, especially if you get it while using flash.

sb Loc: Florida's East Coast

Linda From Maine wrote:

Yes, you can get motion blur from the subject or y... (show quote)

Agree 100% A lot of us use manual settings with ISO on automatic which forces us to always think about how we want our shutter speed and aperture.

tinplater Loc: Scottsdale, AZ

The OP indicates he used flash...I suspect focus error may be the issue as one would expect a photo booth flash to deal with most movement in such a setup.

Meganephron Loc: Fort Worth, TX

Linda From Maine wrote:

Yes, you can get motion blur from the subject or y... (show quote)

I agree if trying to photograph a fast moving object get the shutter speed set with a few test shots if possible (jack up the ISO) then you can fine tune ISO and shutter to get the best combination that eliminates motion and keep ISO lowest to avoid noise though most high end FF cameras are great at eliminating noise at very high ISO. With my D4s I have very good prints at ISO 12,500 and shutter speed 1/500.