Sandra Irwin  


Crape Myrtle Flower by Sandra Irwin

August 2020 - Crape Myrtle Flower

About the Image(s)

I took this with my Canon EOS 5D Mark IV with my Canon 100mm macro lens. ISO 800, F/32, 13.0 sec, polarizing filter, tripod & cable Release.I turned my IS off, used manual focus, aperture priority, and went from f 3.2 to f/32. I got the best sharpness at f/32.

In LR, I increased saturation a bit, and I downed the highlights and lights.


9 comments posted

Dick States   Dick States
Sandra, you should be pretty happy with this image. Nice composition with a nice diagonal leading in from the lower left corner. Looks sharp and I like the shadow on the background. I like how you included the stem and leaves with the flower. I think they can be an important part of the composition when taking pictures of flowers. Remember as you went from a f-stop of 3.2 to f-32 the DOF increased. Half of the DOF in front of the focus point and half behind the focus point. This means as you close the aperture down, say go from 3.2 to 8, the DOF increases so this means you can now focus into the subject more and not waste the additional DOF.
I had some ideas so I did make a few changes to your image.
I darkened the edges and background some, darkened the leaves and toned down the middle flowers which to me was a little bright. I cropped a little off the left and bottom sides. I finally added a little boarder. I hope you like what I did.
I very much like your image for the month.   Posted: 08/01/2020 18:06:58
Dick States   Dick States
  Posted: 08/01/2020 18:15:21
Comment Image
Sandra Irwin   Sandra Irwin
Thanks for the tips on DOF-I'll work on that.

I love your crop, the darkened leaves, and the border. How did you do the "border"?   Posted: 08/02/2020 14:24:48
Dick States   Dick States
I use NIK software and in that package I have image borders. There different borders and I can control the width.   Posted: 08/02/2020 14:57:33
Sandra Irwin   Sandra Irwin
On the DOF issue, are you saying as I close down the aperture, I should refocus and I do it?   Posted: 08/02/2020 14:50:54
Dick States   Dick States
Yes and no. It depends what you want sharp and how much of the image you want sharp. Lets say in your image I make the focus point the tip of the small leaf next to the cluster of buds. At f3.2 we will say the DOF is 1". Now if you close down to f-8 the DOF may be 4" and we will say at f-32 the DOF is 6". Remember when doing close-ups the DOF is 50% in front of the focus point and 50% behind the focus point. We will say at f-8 we have 2" of DOF in front of the focus point and all the leaves are sharp. Now we also have 2" sharp behind the focus point so 2" of the flowers are sharp. But we want all the flowers to be sharp so we change the f-stop to 32. Now the DOF is 6". Now is when we need to move the focus point back maybe on the large middle bud so not to waste DOF in front of the leaves where there is nothing. By by moving it back we now have all the flowers sharp and do not waste part of the DOF on nothing.
I probably did not do a good job in explaining this. These things are very confusing in photography. Maybe someone else can do a lot better job of explaining this and I would welcome them. Perhaps I just confused you more.   Posted: 08/02/2020 15:46:43

Janet DiMattia   Janet DiMattia
Hi, Sandra.
I agree with Dick - you should be very pleased with your image. And I bet you had fun taking it and working on it afterwards.
Dick made some very good suggestions as always - we can learn so much from him.
Composition is pleasing as is the background you chose. Also like the subtle shadows under the subject.
Good job!   Posted: 08/02/2020 15:55:05

Tracy Szela
I really like the color choices here. The background complements the complimentary colors of the flower and leaves. I agree with Dick's suggestions of cropping and the vignette. If you have Lightroom, there is a post-crop vignetting tool in the develop module, which should give you a similar effect as Dick used in Nik. Here's a good article that expands on Dick's description of how DOF changes with lens length, aperture, etc. https://www.exposureguide.com/focusing-basics/
Nice job!   Posted: 08/11/2020 20:34:13
Sandra Irwin   Sandra Irwin
Thank you!   Posted: 08/12/2020 20:04:25

 

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