Focusing the image - Page 2

lifeinpixels · 6th of August 2012 (Mon)

Quote:

Originally Posted by VaiFanatic

off in the corner they really blur and even seem to have an oval halo around them.

Those blurs around the corners aren't a result of poor focusing, but are a defect of many wide aperture lenses. To reduce this you will have to stop down the lens a bit. Don't worry too much about it though, even expensive lenses like the 24 f1.4 have the same problems when shooting wide open.

VaiFanatic · 13th of August 2012 (Mon)

Once my manfrotto tripod finally arrives, I'll have a much easier time shooting. Been AWOL for a few days because of things going on in real-life. Bleh.

carlh · 17th of August 2012 (Fri)

during the live view, focus, then zoom, focus a little more, zoom once more (x10) and tiny little adjustments and it'll be bang on

smitroc · 15th of February 2013 (Fri)

Use a remote shutter release or timer delay as well... the shake in the tripod and pressure on the shutter from your finger are deadly. The 50 1.8 makes some decent images at 4-6 seconds wide open... I've cropped M31/Andromeda to a decent shot with it personally.

calypsob · 16th of February 2013 (Sat)

best way to focus on stars is stop down to f/5.6, use live view and aim at a bright star, switch to manual focus and zoom in on the star with the lens all the way, next use live view zoom out to 10x and finely adjust the focus until you get a nice pinpointed star shape. Also if you are not using an ir remote to trigger then shutter then use the 10 second timer. I doubt mirror slap is causing any camera shake at all

13th of August 2012 (Mon)	#17
VaiFanatic Member Join Date: Jun 2012 Location: San Antonio, Texas Posts: 85 IMAGE EDITING OK	Re: Focusing the image Once my manfrotto tripod finally arrives, I'll have a much easier time shooting. Been AWOL for a few days because of things going on in real-life. Bleh.

17th of August 2012 (Fri)	#18
carlh Member Join Date: Jun 2012 Location: Telford, Shropshire Posts: 461 IMAGE EDITING OK	Re: Focusing the image during the live view, focus, then zoom, focus a little more, zoom once more (x10) and tiny little adjustments and it'll be bang on

15th of February 2013 (Fri)	#19
smitroc Member Join Date: Mar 2012 Posts: 222 IMAGE EDITING OK	Re: Focusing the image Use a remote shutter release or timer delay as well... the shake in the tripod and pressure on the shutter from your finger are deadly. The 50 1.8 makes some decent images at 4-6 seconds wide open... I've cropped M31/Andromeda to a decent shot with it personally. __________________ https://picasaweb.google.com/1131475...eat=directlink

16th of February 2013 (Sat)	#20
calypsob Member Join Date: Jan 2012 Location: auburn alabama Posts: 615	Re: Focusing the image best way to focus on stars is stop down to f/5.6, use live view and aim at a bright star, switch to manual focus and zoom in on the star with the lens all the way, next use live view zoom out to 10x and finely adjust the focus until you get a nice pinpointed star shape. Also if you are not using an ir remote to trigger then shutter then use the 10 second timer. I doubt mirror slap is causing any camera shake at all __________________ Wes ----------- Gear: canon t3i / 600d, 18-55mm kit, tokina 11-16mm, reversed: pentax-A 28mm, sigma APO 70-300, Sigma UC 70-210mm, Carl Zeiss 8x30b

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Split image focusing screen 7D?	Aperturret	Canon EF and EF-S Lenses	11	6th of June 2012 (Wed) 21:42
Split Image focusing Screeen for 5D2	thyme	Talk About Photography	0	21st of March 2010 (Sun) 03:59
Why is the image in my viewfinder not focusing? Canon Powershot S3 IS	radlations	Small Compact Digitals by Canon	1	24th of July 2009 (Fri) 14:45