The models may be acceptable for compact subjects, but for delicate subjects as insects, the results are mostly disappointing.Ī way to overcome the persprcective problem, is a calibration of the camera motion used for the image capturing, together with an algorithm for the correction of the perspective change, see for this our publication /articles.php?id=24584 on insect 3d modelling with PhotoScan. In the "stacked" image with extended focal depth, the slight perspective errors are not noticable to the human eye, but they deteriorate the quality of a 3d model calculated with PhotoScan or any other photogrammetric software. The sticking point, however, when you use focus stacked images for photogrammetry, is perspective: The photogrammetric process requires a unique perspective for all parts of the image, which usually is not present in a focus stack, whether you capture the images with a macro rail or by adjusting the focal plane with the focal ring. Giving you a blue line around your object so you know which part is in focus.Indeed, there are a number of focus stacking programs available, both commercial, as 'Helicon Focus' and 'Zerene Stacker', and free, as 'Picolay' und 'Combine ZP'. Helicon remote also allows you to see the focus points.
BEST HELICON FOCUS TUTORIALS SOFTWARE
The best way to use Helicon remote is to set the shot count to 123 and when then software has photographed each section of the product you can stop it with the stop shooting option.
This allows you to figure out how many shots you will need to use. It gives a blue outline around your object when that area is in focus. Helicon remote also allows you to see which part of the item is in focus. You can set it up to shoot from 1 image to 999 images. Helicon Focus also came with Helicon remote, an extra bit of software that allows you to tether your camera to your computer and control how many shots you want to take, what the aperture and exposure will be.
The software stitched every image together giving super sharp images. Change the focus a smidgen (that's a scientific measurement, btw) shoot, change the focus and on and on. Pray you don't bump anything in the process such as the tripod or the lens' zoom ring or you'll have to start over. There are a few software packages allowing focus stacking, among which Adobe Photoshop (Windows, MacOS), Helicon Focus (Windows, MacOS) and Afinity (Windows, MacOS, and iOS). For me it's best to get every thing set, lights, camera. There are many ways of stitching your images together but I found Helicon focus is the best. Once the sequence of images captured, they should be stacked or merged together to get one all in-focus image. This can also as above give you another angle.įocus stacking! Focus stacking is taking an object and photographing it many times, each time changing the focus point and then with photoshop stitching it all together. Sometimes there can be dirt on your item and with photoshop you’ll be able to clean it up quick and easy. Photoshop Having a basic knowledge of photoshop allows you to clean up your image. You don't need to use all the power the flash will give you but it all depends on your product. Sometimes softboxes don’t give you the softest of light that’s where you need a scrim. What you’re looking for is soft light and highlights on the product. Snoots and softboxes are the way forward. This allows you to control where each part of the light will hit the product. You'll need a lighting table or an area where your objects can be placed, with a good few flashes.
BEST HELICON FOCUS TUTORIALS FULL
Having used all types of light setups I can say the best way to light an object is full control. The client won't sell their items and the whole point of product photography is to make the item look good for your client. Bad lighting the products could have been taken on a smartphone or worse a tablet. Landscape photography can be hard but that's normally down to location and the elements.Ĭontrol the light! In Product photography lighting is king. Product photography is by far the hardest type of photography I’ve ever tried. How wrong I was!!įor someone who has photographed gigs, weddings, family portraits, landscape and model portraits. You place the object on white paper take photo and that's that. I use to look at the photographs on e-commerce websites and think who took them? That must be an easy job.