Fisheye-Hemi Version 2 provides a user interface that is as easy to use as the version 1 set of plug-ins but also allows you as much control and flexibility as you want in tuning your images.
If you are not familiar with Fisheye-Hemi version 1 then please go here to understand how Fisheye-Hemi works.
When you open an image in your imaging application and select the Fisheye-Hemi v2 filter the interface below will appear.
At this point, you have complete compatibility with version 1. The results you see match the results of running the equivalent version 1 plug-in. For the Lightroom and Aperture versions, the presets you see above produce exactly the same results as the presets in those versions of the product.
You now need to decide which preset to apply to your image.
One way is to review this camera/lens table and use the suggested preset. These are just suggestions though and even if your camera is not listed one of the presets may work just fine.
Another way is to just experiment with all three presets and start with the one that gets you closest to how you want your image to look.
If you're satisfied with the results after choosing a preset then click on OK and you're done.
Not satisfied with the image yet? Then now would be the time to clone one of the built-in presets and build your own for your camera/lens combination.
Click on the "Tools" pulldown as shown in the image below and choose "Duplicate" to create your own preset.
You can rename your preset, move it up and down in the list, and lock it so it can't be changed when you are satisfied. Presets can be exported and imported for archiving or sharing with others.
Now that you have a custom preset ready we'll begin tuning the image.
There are two control settings on the main dialog, "Tilt", and "Radius". Click on the small image by the word Radius or any control and a description of the control will pop up. The small image itself is also intended to show the effect of the control.
Use "Tilt" to correct any camera tilt at the time the image was captured.
The "Radius" setting controls the straightening of lines across the entire image. In the landscape image above vertical lines are affected. So you might use "Radius" to straighten the telephone poles.
If you are now satisfied with your image then this may be a good stopping point. For many landscape oriented images this may be all that is required.
Let's continue and look at a few more features of the interface.
When you're straightening objects it may be helpful to have guidelines. Click the guidelines on and off with the grid icon in the lower right corner.
Any setting you change can be reverted back to the last saved value. In the case above both "Tilt" and "Radius" have been changed. The changes are in last-In, first-out order in the list. So you can revert the last change, "Tilt", or the previous change, "Radius" or both of them at once.
Click and hold on the image preview if you want to see the original image with none of your adjustments.
Remember also that you can duplicate your custom preset as many times as you need if you want other reference points.
The next topic is "Advanced Controls".
Clicking on the "Alignment" button in "Advanced Controls" will allow you to center the image both horizontally and vertically. Note that you can revert these advanced settings too.
Now we'll move to the "Correction" dialog.
The "Correction" dialog has two settings. The first, "Allow Edge Wrap", generally should be left on as in most cases it will result in sharper image detail at the edges of the image. If you're seeing issues at the extreme edge of the image you can experiment turning it off and on.
The second setting is "Primary Correction Axis". The default is "Auto-Detect" which provides compatibility with version 1. With this setting, the primary correction is vertical lines for a landscape image and horizontal lines for a portrait image.
Version 2 provides more flexibility in correcting both landscape and portrait images by allowing you to focus the primary correction on a particular axis by choosing "Vertical" or "Horizontal".
Our final set of controls is the "Engine Room".
"Engine Room" settings are automatically computed and generally you won't need to touch them. In some cases though, for example, portrait images, they can be useful.
You can take manual control of the aspect ratio by choosing "Crop".
You now have access to all 10 low-level adjustments. These adjustments will allow you to fine-tune across all areas of the image. Click on the icon by each slider to get more information about the control.