Thank you for help. i knew there are software able to crate 360x180 equirectangular panorama, but i never tested before. when i visited a panoramical area i remember about Hugin and then as impromptu i tried to make shots with z6 14-24mm f2.8 at 14mm focal lenght and i was afrai some of these were not good and then i shot a lot while rotating, to "help" software to understand the scene. i had no tripod so even if i tried to stay in the same position of course while rotating i was not perfectly geometrically held in that position. i tried hugin chosing a part of those pictures (less than 74) but it didnt help. it's a shame because climatic conditions were really good, did you see the attached picture in the first messages?
Il giorno sabato 10 maggio 2025 alle 14:10:37 UTC+2 dkloi ha scritto: > You said you wanted to test Hugin in your first post. Doing a 74 shot > handheld pano is probably not the most advisable way of doing so as a > beginner. I would suggest you take a simpler set of test shots and build up > your knowledge and experience. And you can use the example I have linked to > in my previous message. I have a tutorial (still in draft) at > https://www.dkloi.co.uk/?p=1636 also with example source images and a > project file. > > You still haven't said what focal length did you use. What was it? Why so > many shots? > > I would suggest you go through the Hugin examples and tutorial first to > understand the process before tackling your own set of images. If you want > to get a good stitch out of your 74 image set, then you may be able to do > it manually in expert mode: > - Between each overlapping image pair, place a couple of control points. > The required number of control point pairs may depend angle of view of each > shot, fewer control point pairs are needed for narrower angle of view > source images, I have found. Try to place the control points along the > middle of the overlapping region, this is where the seam will be. > - Where an image does not have many features (such as a photo of the sky) > to place control points on, these might be able to placed by hand (by > setting the appropriate y, p, r parameters) > - Remember to set horizon and/or vertical control points to ensure the > panorama is level > - You can set masks to exclude certain parts of the source images > - After setting the control points, start the alignment process. You can > proceed in stages, first optimising position, then include field of view, > then adding barrel, then optimise everything except translation. At each > stage, check your control point errors to find mis-placed control points > and correct them. > - You can set the output size, this will scale the magnitude if the > control point errors (as this is in terms of the output pano pixel > dimensions and takes into account the projection type). > - If you're not getting a good alignment, then you can try giving each > source image a different lens. The optimiser can adjust each angle of view, > barrel, etc. of each image to try to get a good alignment. > - When the alignment is satisfactory, then you can move onto photometric > optimisation. I usually do this in stages as well. Using the Custom > Parameters, I'll first start out by optimising the EV values only. Then > I'll add in Vb, Vc, Vd, Vx, Vy. I usually untick the EMoR options (leave it > as default). Finally I'll add in the White Balance Er, Eb. Remember to keep > one of the image's EV, Er, and Eb un-optimised as this will be the anchor > image for the exposure. > - You can use the Preview Panorama to check your progress. You can also > adjust the output brightness of your stitched image here. > > You probably have some redundancy in your shots, 74 seems a lot for a Z6 > and a 14-24mm lens, even if shot at 24mm. You can remove the un-needed > shots to make your life easier. > > My first spherical pano was done using a 27mm (equivalent) lens without a > panohead. I spent ages and it still had major stitching errors due to > parallax. I was not keen on spending hours trying to rescue a > parallax-filled large set of photos any more. > > I quickly got a panohead, still using a 27mm lens, so shooting a > 10+10+10+Z+N pattern. These were manually assembled in Hugin, for example > https://www.360cities.net/image/rome-san-lorenzo-in-lucina and > https://www.360cities.net/image/glasgow-royal-exchange-square were taken > in this way. > > This pano https://www.360cities.net/image/spain-barcelona-casa-batllo was > taken handheld using a fisheye lens, but it was not practical to use a > tripod in this situation. > > On Friday, 9 May 2025 at 22:14:51 UTC+1 [email protected] wrote: > >> thank you for reply. i didn't had a tripod with me that day, and forecast >> conditions were perfect. so i d like any help to merge those pictures if >> possible better than i done, and some help in Advanced Mode. i d like to >> learn. if i upload all pictures in my web space, can you please help me >> somehow? >> >> Il giorno venerdì 9 maggio 2025 alle 23:03:31 UTC+2 dkloi ha scritto: >> >>> Shooting handheld can be done (done it myself) but it's not the easiest >>> starting point for a beginner. Also, 74 photos seems to be quite a lot. >>> What focal length did you use? With a 20mm lens (on a panohead) I shoot >>> 8+8+8+Z+N (26 shots). If you shoot at 14mm, even with extra overlap due to >>> shooting handheld, you should be able to get away with about the same or >>> fewer shots to cover the sphere with some care. >>> >>> I'd suggest picking up a panohead just to make it much simpler, >>> especially when you are starting out. If you want to practice how to >>> stitch, then I have some examples, for instance at >>> https://www.dkloi.co.uk/?p=1490 >>> >>> A simple set-up would be to get something like >>> https://panosociety.com/products/nodal-ninja-3-mkii-starter-package and >>> a fisheye lens like >>> https://www.amazon.co.uk/7artisans-Fisheye-185%C2%B0Manual-Mirrorless-Cameras/dp/B0DK1PMNQ2/?th=1 >>> >>> The 14-24mm is quite a big lens so I'm not sure it'd fit on a NN3 MK II. >>> >>> >>> >>> >>> On Friday, 9 May 2025 at 21:43:51 UTC+1 [email protected] wrote: >>> >>>> Hi, i write again because last message was cut. >>>> i m a newbie and i have problems in easy and advanced mode, because i >>>> shot these 74pics without tripod. is there a way to fix it? how can i give >>>> you files here? if i send it tell me "message is too long". Hugin it didnt >>>> work in advanced mode and file was not created. Thank you so much >>>> >>> -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/hugin-ptx/d486f404-9e73-4e24-a645-7938a4731a4dn%40googlegroups.com.
