Shooting F4 as Opposed to F2.8 for Wider Depth of Field
Apr 14, 2021 01:29:29 #
Shooter41
Loc: Wichita, KS
Setting my Sony RX10M4 on F2.8; 1/640 second; ISO 200 for outdoor daylight images of Starlings that resulted in a narrow depth of field and often times the area of clarity being either just behind my bird subject or just in front of them By simply opening the aperature up to F4 on the attached image and leaving everything else the same, the subject and the limbs in front and back of the European Starling seem to be in decent focus. Have other photographers on UHH found this to be the sweet spot on the RX10M4 as well when shooting in bright sunlight?
Also the bird in this image appears to be yelling at other starlings coming toward him to knock him off his perch. I began to wonder if Starlings could talk or imitate sounds at a pitch that humans could hear. There are two videos on You tube that show Starlings talking to their trainers and imitating other sounds that answer that question. So it might be good to be mindful if you are out in your back yard whistling and you year an answer coming from the nearby trees.
Also the bird in this image appears to be yelling at other starlings coming toward him to knock him off his perch. I began to wonder if Starlings could talk or imitate sounds at a pitch that humans could hear. There are two videos on You tube that show Starlings talking to their trainers and imitating other sounds that answer that question. So it might be good to be mindful if you are out in your back yard whistling and you year an answer coming from the nearby trees.
Apr 14, 2021 06:07:07 #
In the first place, you are not opening the aperture when you go from f2.8 to f4 you are actually closing the aperture and that implies a better depth of field. Still a thin depth of field but better than f2.8.
Focus has nothing to do with the aperture because at any aperture the sharpness will depend on where the lens was focused and obviously the aperture selected will determine the depth of field. Focus in front or behind the subject only tells me that you did not focus accurately.
This is a great shot.
Focus has nothing to do with the aperture because at any aperture the sharpness will depend on where the lens was focused and obviously the aperture selected will determine the depth of field. Focus in front or behind the subject only tells me that you did not focus accurately.
This is a great shot.
Apr 14, 2021 06:28:04 #
Gross misunderstanding as to how aperture works. Aperture is closed when going from f/2.8 to f/4.
Check out Panorama section of our forum.
Apr 14, 2021 07:27:34 #
Shooter41 wrote:
Setting my Sony RX10M4 on F2.8; 1/640 second; ISO ... (show quote)
Love this eye-catching shot
Apr 14, 2021 14:30:40 #
Shooter41
Loc: Wichita, KS
Julian wrote:
Gross misunderstanding as to how aperture works. Aperture is closed when going from f/2.8 to f/4.
Thank you for the correction.
Apr 14, 2021 14:31:12 #
Shooter41
Loc: Wichita, KS
joecichjr wrote:
Love this eye-catching shot
Joe... Thank you for noticing the positive.
Apr 15, 2021 07:00:30 #
Check out People Photography section of our forum.
Apr 15, 2021 07:38:09 #
Shooter41
Loc: Wichita, KS
Shooter41 wrote:
Setting my Sony RX10M4 on F2.8; 1/640 second; ISO ... (show quote)
Actually I closed the aperature from F2.8 to F4.0 to widen the depth of field to make it easier for me and my camera to get the center point of FOCUS directly on the subject of my bird image. I am spending more time moving the focus box on the screen directly onto the subject (bird) rather than settling for a larger bracket extending outside the subject.
Apr 15, 2021 07:42:19 #
Shooter41
Loc: Wichita, KS
Julian wrote:
Gross misunderstanding as to how aperture works. Aperture is closed when going from f/2.8 to f/4.
Dear Julian... Thank you so much for pointing out my GROSS MISUNDERSTANDING as to how aperature works. I acknowledge your superior knowledge and brilliance when it comes to aperature. Please let me know if you would like some help in learning about tact.
Apr 15, 2021 07:45:56 #
Shooter41
Loc: Wichita, KS
camerapapi wrote:
In the first place, you are not opening the apertu... (show quote)
Dear camerapapi...EXACTLY. Moving from F2.8 to F4.0 is CLOSIING the aperature and widening the depth of field. Thanks for pointing that out so that I check my wording more carefully in the future.
Apr 15, 2021 07:46:55 #
Check out Advice from the Pros section of our forum.
Apr 15, 2021 08:43:35 #
Apr 15, 2021 09:42:46 #
Apr 15, 2021 09:44:49 #
Shooter41 wrote:
Actually I closed the aperature from F2.8 to F4.0 to widen the depth of field to make it easier for me and my camera to get the center point of FOCUS directly on the subject of my bird image. I am spending more time moving the focus box on the screen directly onto the subject (bird) rather than settling for a larger bracket extending outside the subject.
Great shot. Instead of having several focus areas and moving from box to box it would be simpler to use single point focus. After rereading what you said I believe you are already doing what I suggested.
Apr 15, 2021 10:27:16 #
You are all making this more complicated than it needs to be.
He knows what Aperture does, but the 1/2.8 lens usage does seem smaller than 1/4 lens, you have to know that it is the width of the lens used and not some other measure like inches or MM.
This one factor is what makes aperture work, the closer to the center of the lens you get the flatter it is, the deeper the slice of focus becomes.
Photography is base on inverse reciprocal mathematics, his use-understanding of the Aperture works for him, you, and me even if we do not understand that a light factor of ONE has 10 to the first -one variables.
And no I am not kidding very few people are capable of visualizing inverse reciprocal formulas in their head.
This should fill you in on exposure!
https://www.uglyhedgehog.com/t-464074-1.html
He knows what Aperture does, but the 1/2.8 lens usage does seem smaller than 1/4 lens, you have to know that it is the width of the lens used and not some other measure like inches or MM.
This one factor is what makes aperture work, the closer to the center of the lens you get the flatter it is, the deeper the slice of focus becomes.
Photography is base on inverse reciprocal mathematics, his use-understanding of the Aperture works for him, you, and me even if we do not understand that a light factor of ONE has 10 to the first -one variables.
And no I am not kidding very few people are capable of visualizing inverse reciprocal formulas in their head.
This should fill you in on exposure!
https://www.uglyhedgehog.com/t-464074-1.html
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