Focus/aperture question - SV650.org

Kenzie · 12-04-14, 01:17 PM

Hi guys, the wife and I are off to Thiepval next weekend and I have an idea for a photo. I would like to focus on a gravestone but throw the background and foreground out of focus. Do I need to open up the aperture wide (low number) and focus on the part I want in focus? Hope that makes sense?

LewSpeight · 12-04-14, 01:53 PM

Hi Kenzie.
Yep, makes sense.
The lower the aperture number (the wider it opens the aperture rings) the stronger the shallow depth of field will be, which is the effect you're looking for.
So just do exactly what you've already said and you will get the effect you're after.
Hope this is alright for you.
Lew

Sent from my C6603 using Tapatalk

jambo · 13-04-14, 06:27 AM

Focal length equations are a lot of work but generally as above the wider the aperture the shallower the depth of field. However distance to subject and lens length make a difference too. The closer the subject, the longer the focal length, and wider the aperture the shallower the depth of field. If you're not getting what you want experiment with zoning in and moving closer to see what helps with your camera and lens setup.

Jambo

Sent without a real keyboard

Kenzie · 13-04-14, 09:13 AM

Thanks for the tips. Will try them out and see what happens.

12-04-14, 01:17 PM	#1
Kenzie Member Join Date: Feb 2011 Location: Ipswich, Suffolk Posts: 820	Focus/aperture question Hi guys, the wife and I are off to Thiepval next weekend and I have an idea for a photo. I would like to focus on a gravestone but throw the background and foreground out of focus. Do I need to open up the aperture wide (low number) and focus on the part I want in focus? Hope that makes sense? __________________ Flickr https://www.flickr.com/photos/39887875@N06/

12-04-14, 01:53 PM	#2
LewSpeight Member Mega Poster Join Date: Nov 2012 Location: Halifax, UK Posts: 1,167	Re: Focus/aperture question Hi Kenzie. Yep, makes sense. The lower the aperture number (the wider it opens the aperture rings) the stronger the shallow depth of field will be, which is the effect you're looking for. So just do exactly what you've already said and you will get the effect you're after. Hope this is alright for you. Lew Sent from my C6603 using Tapatalk __________________ BREAKING MY SV - CLICKY CLICKY You laugh at me because i am different.. ....................................I laugh harder because you are all the same.

13-04-14, 06:27 AM	#3
jambo Member Mega Poster Join Date: Aug 2003 Location: Croydonia Posts: 5,376	Re: Focus/aperture question Focal length equations are a lot of work but generally as above the wider the aperture the shallower the depth of field. However distance to subject and lens length make a difference too. The closer the subject, the longer the focal length, and wider the aperture the shallower the depth of field. If you're not getting what you want experiment with zoning in and moving closer to see what helps with your camera and lens setup. Jambo Sent without a real keyboard __________________ Modern motorcycles are bloody brilliant, enjoy it while we can

13-04-14, 09:13 AM	#4
Kenzie Member Join Date: Feb 2011 Location: Ipswich, Suffolk Posts: 820	Re: Focus/aperture question Thanks for the tips. Will try them out and see what happens. __________________ Flickr https://www.flickr.com/photos/39887875@N06/

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