Lee Ramsden — Lee Ramsden

Photography tool - image stitching.

11 SKN electrical office front Aberdeen oil and gas industry

Good morning, i hope that you are well. 

Today i'd like to share a quick thought on how you can use image stitching to over come problems.

I appreciate that this is nothing new, but with some fore-thought it can become a powerful tool in your arsenal. 

I was commissioned to shoot an office building. The front had no access due to very limited space and parked cars in my way. Even with the lens at 24mm it was simply impossible to fit the building into frame. So stitching is the only way forward. 

The above image was created with around 25 images. 

Here you can see the images used, 

the camera was mounted on a tripod and i systematically panned left to right making sure to over lap alot. The building took 3 passes.

Always best to have more frames than needed, than have pieces missing down the line. 

With each up date of Photoshop CC i have noticed that it is becoming much better at stitching. 

In the past it would have not been able to do this, and for these cases i use Autopano Giga 3.0 stitching software, but photoshop managed ok with this. 

Now by using a tilt shift lens, and/or a parallax tripod head, your job in post will be so much easier, but as i do not own either of these i had to make do. The majority of my time was spent straightening the stitched image. 

As with all panos, shoot in manual, turn white balance off auto so all the images remain consistent. 

I hope that this helps, and when you are trying to shoot a subject larger than your frame, that you remember this technique. 

 

Thanks

 

Lee

Scene lighting technique.

Nikon D800 f7.1 1/8th ISO100

Good morning, 

Id like to share with you a lighting technique that you can use to light a scene, even when working on your own. 

The above image consists of 21 images, all shot and lit by myself, and i am even in the image, to add some interest. 

I will show you, how i take multiple images, all lit with off camera flash, and then the process i take in photoshop.

 

02 Off camera flash wireless trigger pocket wizard boom illuminating the scene

Here you can see me using an off camera flash head on a pole, with the trigger in my right hand firing off the flash and camera shutter remotely. 

Click on image to enlarge.

The final image is composed of 21 frames. 

The camera was mounted on a tripod. White balance taken off auto, manual settings, and with me using back button focusing on the camera, i know when i press the remote, the camera will not try and focus, making all the images consistent. 

05 Start image quick tip on how to flash light

Quick tip, 

Like when making panos, my first image is a large image of me, so i can find the set easily in bridge. 

Also this is a great way to make sure that the flash and camera shutter both fire correctly. 

As when using pocket wizards as the remote, the flash PW has to be set to a channel higher and some times i forget this, and so it is always a good idea to test everything before getting started and walking far into the scene. 

04 adobe bridge using photoshop tools loading layers

Using bridge i select all the images that i want to use, and from here you can easily load them into photoshop as a single document with 21 layers. 

06 using lighten blend mode in photoshop CC

Now turn off all layers, and starting from the bottom layer i work my way up through the stack, turning on, one layer at a time, changing the blend mode to Lighten. 

07 using a mask in photoshop CC

With the blend mode on lighten, the flash light will show. 

Also you will see indicated in this image the hot spot of the flash is in the image. This is easy to mask out. Also i remain in the image by some strange artefacts, just simply mask these out. 

After some cleaning and tweaking here is the before and after image.

The before being unlit. 

It is a subtle difference, but one i find takes your images to that next level. 

If you have any questions, feel free to comment and i hope to help. 

 

 

Thanks

Lee