Beans beans...
Discussion
the depth of field changes according to the focal length of the lens and how close the subject is to the focal plane - the amount of light passing through is the only constant at whatever the aperture may be.
i'm assuming you are not using bellows or extension tubes. if this is the case you need to apply the inverse square law if the extension is greater than the focal length of the lens.
edit to add - stopping down does mean making the hole which light passes through smaller - it does increase DOF.
i'm assuming you are not using bellows or extension tubes. if this is the case you need to apply the inverse square law if the extension is greater than the focal length of the lens.
edit to add - stopping down does mean making the hole which light passes through smaller - it does increase DOF.
Edited by doodah on Monday 25th September 23:48
doodah said:
the depth of field changes according to the focal length of the lens and how close the subject is to the focal plane - the amount of light passing through is the only constant at whatever the aperture may be.
i'm assuming you are not using bellows or extension tubes. if this is the case you need to apply the inverse square law if the extension is greater than the focal length of the lens.
edit to add - stopping down does mean making the hole which light passes through smaller - it does increase DOF.
I suppose my DOF is so shallow then due to the small amount of space between the glass and the subject. 70mm, even with 1.6x, doesnt give much zooming power so I have to move in as close as possible. i'm assuming you are not using bellows or extension tubes. if this is the case you need to apply the inverse square law if the extension is greater than the focal length of the lens.
edit to add - stopping down does mean making the hole which light passes through smaller - it does increase DOF.
What are bellows? And can you explain the inverse square law in laymans terms?

the greater the focal length the shallower the DOF at F11.
but the amount of light that hits the focal at F11 is constant as long the distance between the lens and the focal length isn't greater than the focal length.
if you were using a 70mm lens on a plate camera and the extension once focused was 140mm and the exposure meter said F11 you would need and extra stop of exposure for the exposure to be correct.
but the amount of light that hits the focal at F11 is constant as long the distance between the lens and the focal length isn't greater than the focal length.
if you were using a 70mm lens on a plate camera and the extension once focused was 140mm and the exposure meter said F11 you would need and extra stop of exposure for the exposure to be correct.
Got some beans waiting for review and some onions.
How are your downloads fairing Shutterstock people? This week, mine have halved compared to the previous week.
How are your downloads fairing Shutterstock people? This week, mine have halved compared to the previous week.
Platinum said:
Got some beans waiting for review and some onions.
How are your downloads fairing Shutterstock people? This week, mine have halved compared to the previous week.
Seem about the same as last week, maybe a little slower. Ive made $173 so far this month, 50 sales in the last 2 days. Sales always pick up on SS after a batch upload, you need to keep uploading to keep sales figures high. I havnt submitted anything in 2 weeks and they are slowing down. Hope to get another 50 pics accepted by friday which should give next week a boost.
How are your downloads fairing Shutterstock people? This week, mine have halved compared to the previous week.
My onion (isolated single onion) seems to be in first place
how about you Poah? 
crmcatee said:
Well having been on there a week I've got 46 downloads. 27 of which were yesterday. A friends wedding candid snap being the top downloader - 6
Keep thinking of things to photograph - so much so I'm writing them in a little book of things to do.
That book will grow. 27 downloads is fantastic, nice one.Keep thinking of things to photograph - so much so I'm writing them in a little book of things to do.
crmcatee said:
Well having been on there a week I've got 46 downloads. 27 of which were yesterday. A friends wedding candid snap being the top downloader - 6
Keep thinking of things to photograph - so much so I'm writing them in a little book of things to do.
Keep thinking of things to photograph - so much so I'm writing them in a little book of things to do.
I feel so inadequate. 27 downloads.....
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