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daveg

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daveg last won the day on February 4

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About daveg

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  1. daveg

    Small World

    Haven't tried the Cordial yet but the Naked Ginger is fiery. I am hoping that it's reputation in being a natural remedy for Vertigo holds up. Place names are weird. I only know of the one Swansea and did not know that Swansea, Tasmania existed. There is a Nelson on the South Island of New Zealand and it would be interesting to know which (if any) of the British Nelsons it was associated with. DG
  2. daveg

    Small World

    From Buderim to Wales with (hot) love:
  3. daveg

    Stacking

    The Acme Thunderer:
  4. daveg

    Tasmania Trip

    So the pano is vertical rather than horizontal? Cunning! DG
  5. daveg

    Tasmania Trip

    Does the drone allow for portrait orientation during panorama taking or is it fixed in landscape? If the lens is wide enough I don't suppose it matters - just wondering. I have always used portrait mode whether hand holding or on a Panosaurus Rex Rig on a tripod. I found it interesting when I first got the Panosaurus that it only allows for portrait orientation. The last time I used it was to try out the HDR/Panorama feature new to PS CC and ACR. DG
  6. daveg

    Stacking

    More Stacking of things that play a big part in my life at the moment. Photographed on a mirror with a black card BG. 20 RAW images stacked in PS CC. Single off-camera Flash bounced off white surface.
  7. daveg

    Stacking

    I have seen some excellent images taken with that lens but am I correct in thinking that, at those magnifications, the dof would be even less? I was trying to answer the question posed by Barry and his suggestion that, because in a studio, we have complete control of lighting etc that stacking is not required. I agree that if you pose the object to suit the technical limitations then, yes, it can be done. But if you take as an example the head of the guitar the way I posed it then the assistance of stacking is needed to get the dof at the optimum aperture and even the manufacturers and certainly the reviewers of these lenses admit that f22-32 is not optimum. DG
  8. daveg

    Stacking

    A couple of follow up points to the last post above. 1. I tried a series of exposures of the Shell at the same sort of magnification as the one I posted above. By focusing on a point which was "sort of one third" into the shell and taking a series of exposures from f32 to f4 I was able to determine that I would not be able to acquire front to back focus (mainly back) even at f32. 2. At f8-11 I could get critically sharp focus on the nearest and furthest parts of the shell but then, in each case, the opposite side was wildly out of focus. 3. So, for this subject and the view I chose, Stacking would give me critically sharp focus from front to back assuming that I chose the optimum number of images and step width. DG
  9. Just a side issue. Will there be a good internet connection wherever you go? If you are going to use Photoshop and you are on a monthly account you will need to Log In from time to time and it will probably hit you when you are out of range of a broadband connection. I don't know what your experience is but I know a lady who spends a long time away on photo trips and gets a REAL problem with it. DG
  10. daveg

    Stacking

    If you can get enough depth of focus at the optimum aperture for the lens then there is no need for Focus Shift. If you want front to back critical focus on an object (such as the guitar head example) then you are not going to get it and stay within the optimum parameters of the lens. If you go into more challenging subjects like tiny insects then it is even more of a problem. It would probably be worth trying the shell example at different apertures just to see exactly what my 105mm micro will do if pushed to the limits. The way that I understand it, if we rely on the aperture to control the dof then we are going to get "acceptable" sharpness at the limits of the dof. What focus stacking does is give you "critical" sharpness between the two points that you set and does it at the optimum aperture of the lens (not the minimum aperture). You raise a very interesting point. At what stage does Focus Stacking become the only option? BTW, I learned this week that the script which adds images to layers will operate on RAW files without the need for ACR conversions. Maybe it has always done this - I have never had the need to try it out before. If anyone wants to add anything to this please feel free to jump in. DG
  11. daveg

    Stacking

    Hi Joan, It is daunting if you use a focussing rail! But using the Z6/7 or D850 or a similar camera with focus shifting it takes the drudgery out of the taking stage. Just set it up for the number of shots and step width and Press the button then step away. If you can use continuous lighting then the camera will take up to 300 shots shifting the focus by minute amounts automatically and silently. If you use flash then you have to allow for recharging and silent mode is not possible. I used flash here but I have tried ambient and silent mode and it is fast and silent. The problems arise during the processing and depend on the step width being "right". It appears that all software requires a certain amount of "tidying up" after stacking and currently I am using Photoshop CC. Reviews I have read claim that Serene Stacker makes the tidying up very easy and when I have the time I will try their 30 day free trial. The big advantage of PS is that it will stack RAW files. DG
  12. daveg

    Stacking

    Thirty shots at a step value of 2 - f8 - 105mm F2.8 VR on the Z6.
  13. Old versions: https://www.wnsoft.com/en/picturestoexe/old-versions/ DG P.S. You are missing out on a lot of great new features.
  14. daveg

    Stacking

    Depends on the size of the insect I suppose, but I will probably not go there for a while unless something to good to miss crops up. Finding subjects without going outdoors is not going to be easy but I will try my best. I get to do the shopping once a week so maybe I can find some interesting vegetables in M&S 😀
  15. daveg

    Stacking

    You focus on the nearest point, or just closer. You then set the number of shots and step width. It creates a new folder on your xqd card and numbers from 0001 or continues normal numbering. Set Silent Shutter. Press the button and it takes the set number of shots at the set step width moving the focus automatically. If using Flash you need to set the Interval between shots to allow for re-charging. If focus reaches infinity at your settings it stops. There are some charts in one of the links I provided earlier but I think that each shot will involve a certain amount of trial and error. Freshly charged batteries are essential. DG P.S. Does not work with older screw driven lenses. Newer G lenses are required.
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