Lightroom 5: Upright
Upright is an semi-automatied push-button solution to get rid of leveling and perspective convergence problems in your photos. It’s located in the Develop Module > Lens Corrections> Basic
- Enable Profile Correction and Remove Chromatic Abberation to make Upright work better
- Auto: applies a balanced level, aspect ratio, and perspective correction. Lines may not be perfectly vertical or horizontal, but it looks more natural.
- Level: Enable level correction only.
- Vertical: Enable level and vertical perspective correction only.
- Full: Enable full level, horizontal and vertical perspective corrections.
Synchronizing Upright Settings between multiple photos
- Upright Mode: Applies Upright to each photo individually. Each photo is evaluated independently.
- Upright Transforms: Applies the same Upright transformations to all the photos. Good for HDR or time lapse sequences.
Flash (Photography) Speeds and how they affect the shot
Here is a few articles that show how studio flashes and speedlites differ in speed. The setup is to capture and freeze the motion of a drop of milk dropping.
- Speed of flash units for high speed flash photography http://www.scantips.com/speed.html
- Why Studio Flash and Speedlights are different Speeds. http://www.scantips.com/speed2.html
- Discharge Curves of Electronic Flash at Different Power Settings. http://www.chem.helsinki.fi/~toomas/photo/flash-discharge/regular.html
It’s definitely a good read. I can’t remember all the details of how tings work, but basically, lower power flash = faster light
Lenses and the Effect of Changing to a 1.6 Crop Factor
Reddit User GeneralSarsby created this diagram to show the effect of lenses and the effects of changing to a 1.6x crop sensor. Nice!
Open Jpgs/Raw files in Photoshop as Smart Objects
So, yes, you can embed an entire camera raw into Photoshop as a smart object. There are a couple of ways to do this. This is the easiest one, though a bit unintuitive.
- Oopen your file in camera raw
- In the camera raw dialog box, click on the blue underlined text at the bottom center of the screen to access the Workflow Options dialog box.
- From the Workflow Options dialog box, you can choose to open in Photoshop As Smart Object.
Reciprocity Law (Photography)
The Reciprocity Law explains how exposures work in photography. Basically, the Total Exposure is determined by the intensity of the light times the duration of the light. So, if you want to change your camera settings and get the same exposure, whatever you move in one direction for one setting (longer shutter speed), you have to move the other setting in the opposite direction (smaller aperature).
How Light Enters a Camera and Exits Out to Your Eye
All the f-Stops of the Rainbow
Red = Full Stops
Green = Half Stops
Blue = Third Stops
Orange = Quarter Stops.
Wikipedia says that it’s okay that sometimes the numbers are the same in the different systems.
Remove Missing Images from Adobe Lightroom, Deleting Images from Adobe Lightroom
I didn’t realize how difficult it would be for Lightroom to delete 15 thousand photos from the catalog and from my hard drive by itself till it died on me (not enough memory). Instead, I just deleted the images from the drive manually, and then had Lightroom remove the images from the catalog it can no longer find.
- Delete the images on your hard drive. Lightroom should see them as missing now.
- In the Library Module, right click on the Folder where your images are located. Collections won’t work for this. Select “Synchronize Folder”
- In the pop up dialog box, one of the options is to “Remove Missing Photos from Catalog”.
- Awesome.
Graph the Your Lenses For Your Camera Kit!
I made a chart where you can plug in your lens numbers, and Excel will generate a chart to plot out your zoom and aperture on an XY Graph. This is helpful when building your dream camera kit (or, in my case, day dreaming about it) or deciding what gear to bring for a shoot. You can jazz it up yourself to be even more useful if you’d like. File can be downloaded here.
Plug in your lens name and aperture range (widest aperture at shortest and longest zoom) and zoom range for each lens. If it’s a prime lens, just put in one set numbers. Then, put in your crop multiplation factor factor.