silly question

sworks · 13th January 2008, 17:32

probably seems a silly question but here goes - I have taken some photos of my boss's son. My boss is the British kart champion and his son looks like he may follow in his footsteps. i took 2 particular photos and one worked the other was blurred. Camera was in tv mode and shutter speed was 1-50, i was also using a 90-300 lens. Was one blured because of the distance to subject was slightly different in both shots, or because i moved - tripod not used in either
thanks

mantianak · 13th January 2008, 20:15

1/50 you would need a steady hand, especially if you were using at 300mm. When using tele-photo it can also magnify the hand shake. Could be out of focus, the type of blur can sometimes show which problem it is.

I could be wrong, but I think TV mode is set at lower shutter-speeds so you don't get cut-off pictures when photo'ing a TV. The sport setting or night setting (if there is one) may give you sharper shots.

lightpainter · 14th January 2008, 21:52

General rule when using a telephoto lens is, the shutter speed should be equal to, or greater than the focal length of the lens to avoid camera shake, especially hand held!

sworks · 16th January 2008, 20:49

thanks guys

baxlin · 18th January 2008, 12:25

There, Sworks, it wasn't a silly question, was it??

Utter gobbledegook to me, though, both question and answer, but then I'm the original point-and-press merchant..........

Malcolm

lightpainter · 18th January 2008, 16:05

Quote:

Originally Posted by baxlin

There, Sworks, it wasn't a silly question, was it??

Utter gobbledegook to me, though, both question and answer, but then I'm the original point-and-press merchant..........

Malcolm

But did it sound impressive Malcolm?

baxlin · 18th January 2008, 18:44

Quote:

Originally Posted by lightpainter

But did it sound impressive Malcolm?

Absolutely, Pete, I believed every word............

DavidJ · 21st January 2008, 11:11

Quote:

Originally Posted by mantianak

I could be wrong, but I think TV mode is set at lower shutter-speeds so you don't get cut-off pictures when photo'ing a TV. The sport setting or night setting (if there is one) may give you sharper shots.

Tv (Time Value) mode is also known as Shutter Priority, you set the shutter speed to obtain the creative effect you desire and the camera automatically sets the aperture to correctly expose the photograph.

The general rule of thumb is that the shutter speed should be equivalent to the focal length of the lens and on a crop camera the crop multiplier should be applied to avoid camera shake. Your 90-300 on your Canon crop camera should be used with a minimum shutter speed of 300 x 1.6 = 1/500 sec to ensure a good sharp photo when handheld.

Good technique, Image Stability and using additional support would all allow you to reduce the shutter speed. A good flash would allow you to increase the shutter speed if there is insufficient ambient light available.

mantianak · 22nd January 2008, 07:21

Quote:

Originally Posted by DavidJ

Tv (Time Value) mode is also known as Shutter Priority, you set the shutter speed to obtain the creative effect you desire and the camera automatically sets the aperture to correctly expose the photograph.

I did not know that. My Olympus has S or SP instead, I asumed TV was a setting like sport or portrait modes (which I rarely use).

podge · 25th January 2008, 18:29

I am still not used to all this Digi gear, so its stop the lens down for depth of field or wide open for a soft background for me........still in the steam age down here!

13th January 2008, 17:32	#1
sworks Been absent for a while… Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV Join Date: Feb 2007 Location: Cumbria Posts: 13,065 Thanks: 1,033 Thanked 1,686 Times in 1,040 Posts	silly question probably seems a silly question but here goes - I have taken some photos of my boss's son. My boss is the British kart champion and his son looks like he may follow in his footsteps. i took 2 particular photos and one worked the other was blurred. Camera was in tv mode and shutter speed was 1-50, i was also using a 90-300 lens. Was one blured because of the distance to subject was slightly different in both shots, or because i moved - tripod not used in either thanks __________________ ................................................. 'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle

13th January 2008, 20:15	#2
mantianak I really should get out more....... ZT 190+ Saloon Join Date: Nov 2006 Location: Poole Posts: 2,413 Thanks: 6 Thanked 22 Times in 21 Posts	1/50 you would need a steady hand, especially if you were using at 300mm. When using tele-photo it can also magnify the hand shake. Could be out of focus, the type of blur can sometimes show which problem it is. I could be wrong, but I think TV mode is set at lower shutter-speeds so you don't get cut-off pictures when photo'ing a TV. The sport setting or night setting (if there is one) may give you sharper shots. __________________ http://i35.photobucket.com/albums/d1..._signature.png

14th January 2008, 21:52	#3
lightpainter Posted a thing or two 2004 Rover 75 Saloon 2.5 V6 Conn SE Auto Join Date: Nov 2006 Location: Rainham, Kent. Garden of England Posts: 1,162 Thanks: 28 Thanked 42 Times in 6 Posts	General rule when using a telephoto lens is, the shutter speed should be equal to, or greater than the focal length of the lens to avoid camera shake, especially hand held! __________________ See my pictures here. My Flickr [SIGPIC][/SIGPIC]

16th January 2008, 20:49	#4
sworks Been absent for a while… Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV Join Date: Feb 2007 Location: Cumbria Posts: 13,065 Thanks: 1,033 Thanked 1,686 Times in 1,040 Posts	thanks guys __________________ ................................................. 'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle

18th January 2008, 12:25	#5
baxlin This is my second home Volvo C70 Convertible and JZR 3 wheeler Join Date: Nov 2006 Location: Tring, Herts Posts: 3,960 Thanks: 124 Thanked 173 Times in 124 Posts	There, Sworks, it wasn't a silly question, was it?? Utter gobbledegook to me, though, both question and answer, but then I'm the original point-and-press merchant.......... Malcolm

25th January 2008, 18:29	#10
podge I really should get out more....... Rover 75 Tourer CDT CLUB SE Copper Red Mica Dec 01 ....now deceased....replaced by2003 Royal Blue T Join Date: Nov 2007 Location: North Warnborough, Hampshire Posts: 2,398 Thanks: 9 Thanked 69 Times in 20 Posts	I am still not used to all this Digi gear, so its stop the lens down for depth of field or wide open for a soft background for me........still in the steam age down here!