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russ_watters said:Nice - what equipment are you using?
And a few critiques, if you don't mind:
-The photo appears slightly out of focus. I use Meade's DSI and with its low resolution, I actually hold the computer about a foot from my face while focusing to be able to see minute changes. Also, making very minor adjustments, then taking your hand off the focus knob while the picture stops shaking helps get a sharper focus.
-I'm not sure how you assembled the mosaic, but the borders between frames are very noticeable, implying you just laid them over top of each other. Photoshop has plugins for stitching and I actually use a program called "Image Assembler", which aids both in aligning and in blending the images.
That's tough. I use a decent generic digital camera for the wide angle shots and have the same problem. I assume you're shooting through a telescope, though, so it may help to use a focusing aid such as a http://rao.150m.com/Focusaid.html" it is. I've been using it for years to make scenery panoramas.zanazzi78 said:I do find focusing difficult. I use a SLR with film, (no digital photography for me, yet!), the viewfinder is only an inch or so across so can be very difficult to see some times. It also makes the image appear fainter than when viewed throught the scope, which in a pain.
Stacking works via averaging (there are actually several methods, but this is the simplest to explain ). By taking multiple pictures and calculating the average color of a certain pixel, errors are canceled out, increasing the signal-to-noise ratio. A black, but speckled sky turns even gray (which then can easily be darkened without losing what you were photgraphing) and details in the object you are imaging are enhanced by building signal and reducing the noise.edit: You mentioned in your post the Cass pic is a stack of 5x15 sec shots.
I`ve never stacked my shots. What are the benefits of stacking? How do you do it properly?
A mosaic of the moon is created by combining multiple images of the moon taken at different angles and lighting conditions. These images are then stitched together using specialized software to create a high-resolution composite image of the entire moon.
The purpose of creating a mosaic of the moon is to obtain a detailed and comprehensive view of the lunar surface. This can help scientists study and understand the geological features, mineral composition, and other characteristics of the moon.
To create a mosaic of the moon, specialized cameras and telescopes are used to capture high-resolution images of the moon's surface. These images are then processed using sophisticated software to stitch them together and create the final mosaic.
The time required to create a mosaic of the moon can vary depending on the size and resolution of the final image, as well as the availability of high-quality images to use. In general, it can take several weeks or even months to create a detailed and high-resolution mosaic of the entire moon.
A mosaic of the moon can provide valuable insights into the moon's geological history, surface features, and potential resources. It can also help in planning future lunar missions and exploring potential landing sites for human exploration.