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When Do You Need A Telescope Reducer? (Perfect answer)
- https://www.amazingtelescopes.com/recommendations/when-do-you-need-a-telescope-reducer-perfect-answer.html#:~:text=A%20focal%20reducer%20is%20a%20device%20that%20shortens,astrophotography%20as%20well%20as%20for%20general%20visual%20usage.
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What does a focal reducer do? - Google Groups
- https://groups.google.com/g/sci.astro.amateur/c/kAYrr6pyigQ
- The focal reducer makes the scope act like a shorter focal length scope. Of course, it is not perfect and with the SCTs, there is some vignetting. And, it adds more glass to the optical path. But...
Agena's Guide to Focal Reducers - Agena Astro
- https://agenaastro.com/articles/product-types/focal-reducers-guide.html
- A focal reducer will provide its design reduction factor only when it is placed at the exact working distance from the focal plane of the eyepiece or camera Reducing the operating distance, that is, moving a focal reducer closer to the eyepiece or camera increases its reduction factor, or conversely reduces the amount of focal reduction
What Are Focal Reducers and What Are They Used For?
- https://fstoppers.com/education/what-are-focal-reducers-and-what-are-they-used-547181
- This is because they reduce the size of the image circle, making them suitable for using something like a full frame lens on micro four thirds bodies, which are popular for filmmaking. On the other...
Focal Reducers – Lens Adapters That Change the Game
- https://www.cined.com/focal-reducers-lens-adapters-that-change-the-game/
- While the latter increases the apparent focal length of a lens, a focal reducer does what it says on the tin: reduces the apparent focal length. It does this much like a magnifying glass, by taking the image circle produced by a lens (which is designed for a bigger sensor size), and shrinking it down so that the (smaller) sensor or film plane can capture more of the image …
What does a focal reducer do? - Cats & Casses - Cloudy Nights
- https://www.cloudynights.com/topic/7154-what-does-a-focal-reducer-do/
- I know a focal reducer reduces the focal length, and are used a lot for photography to reduce exposure time, but will it give me a wider field of view for visual use? Although a few of the available reducers aren't good for visual use, many will do what you want.
What is a focal reducer and what does it do? Is it worth it?
- https://www.reddit.com/r/telescopes/comments/3eit50/what_is_a_focal_reducer_and_what_does_it_do_is_it/
- Focal reducer typically reduces telescope's focal length, making it photographically "faster", i.e. making images expose faster, and also decreasing the magnification factor. It is also known as a telecompressor.
How do focal reducers affect image quality?
- https://photo.stackexchange.com/questions/42421/how-do-focal-reducers-affect-image-quality
- 2. From this PC Mag review, it looks like the center isn't too badly impacted, but the fall off near the edges of the image become pretty severe. I don't have any direct experience, but the general review seemed pretty positive even if there is some barrel distortion. It seems like unless you need the reduction in the crop factor, you are ...
Optics Primer - Focal Reducers - Photons to Photos
- https://photonstophotos.net/GeneralTopics/Lenses/Optics_Primer/Optics_Primer_16.htm
- This same principle can be used to take a lens that focuses at infinity at a particular Flange to Focal Distance (FFD) and allow it to focus at infinity at a shorter FFD. So, something can be attached to the rear of the lens to accomplish this and such attachments are generally called focal reducers.
Do I need a Focal Reducer? - Stargazers Lounge
- https://stargazerslounge.com/topic/255579-do-i-need-a-focal-reducer/
- Getting Started With Imaging. Do I need a Focal Reducer? By MIDIManNI, October 25, 2015 in Getting Started With Imaging. Share. 2.
background - Does using a focal reducer shrink depth of field ...
- https://photo.stackexchange.com/questions/128265/does-using-a-focal-reducer-shrink-depth-of-field
- Focal reducers convert both the focal length and aperture of the lens. You can think of it as multiplying by 1 = 0.7/0.7. Your 50/2 lens will behave like a 35/1.4 (= 50×0.7 / 2×0.7) lens when used with the focal reducer.
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