Billbobboy42 wrote:
I just tried focus stacking for the first time, less than stellar results but I am new to the process. I am using Helicon (mid-priced version). My first attempt was with a macro lens on a Canon 6D. Using the viewfinder was a bit difficult for me to see a clear focus. Forgot about using live view. Will try that next.
Anyway, curious to hear what results Hoggers have experienced. I have not noticed any postings on the subject in quite some time.
Billbobboy42,
I have used focus stacking several times and received very good results, after discovering the error of my early ways.
Using a Canon EOS 1000D body and the Canon 18 - 55mm lens, and CZM software to handle the stacking, the subjects came out very good. Try the following:
1. Place subject on a sturdy platform.
2. Place camera/lens on a tripod.
3. Frame the subject in the viewfinder/LCD panel for your desired composition.
4. Set the lens Aperture to around f/8 for limited depth of field.
5. If necessary move camera forward, or backward to maintain composition at your desired focal length.
6. Set the camera lens to Manual Focus.
7. Adjust the manual focusing ring to sharply focus on the subject from a point farthest from the camera film plain, then adjust the focusing ring to a point nearest the camera film plain. Note all critical points that fall into pin sharp focus during the above adjustment series. These points will be used for each exposure.
8. Note. On most digital cameras, when viewing the subject through the viewfinder, or LCD panel, the lens is set wide open for maximum light, only when the shutter is depressed is the lens Aperture closed down.
9. The number of exposures required will depend on the number of critical focus points you discovered in #7 above.
10. For reference in later troubleshooting (if necessary) manually focus on that subject element farthest from the film plain. Capture an exposure.
11. Continue capturing exposures until you have captured all the critical points including the exposure at that subject point closest to the film plain.
12. Import all the exposure files into your focus stacking software.
If the end result is still not sharp enough you may need to select a higher Aperture f/stop for greater DOF, or select more critical focus points. The value of f/8 should be enough to allow the range of DOF between most critical focusing points to cover focusing between one point and the next.
Outdoor focusing stacking is next to impossible due to air currents moving your subject. If you must photograph a flower using the focus stacking technique, use a pair of shears and bring the flower indoors where you have total control over the environment.
After you have completed the stack process, have performed all other processing to create a final .jpg image you can merge this image into another image photographed outdoors and slightly out of focus for the outdoor effect.
Michael G