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lens - Astrophotography Canon 17-40mm f4L vs …
- https://photo.stackexchange.com/questions/67353/astrophotography-canon-17-40mm-f4l-vs-samyang-24mm-f-1-4-how-much-of-a-differenc
- Astrophotography Canon 17-40mm f4L vs Samyang 24mm f/1.4 how much of a difference would there be? Ask Question Asked 6 years, 10 months ago. Modified 6 years, 10 months ago. Viewed 5k times 4 I made my …
17-40mm f/4L for Milky Way & Star trails is a good lens?
- https://photography-on-the.net/forum/showthread.php?t=1336891
- EF 17-40mm f/4 L USM is a good lens but not for astrophotography. It is marginally not wide enough. ... I've done star trails with my 17-40 on my 5DII. f/4 will capture the stars with no problem. However, I'm my …
Canon 17-40mm f4L USM Lens Review - First Man Photography
- https://www.firstmanphotography.com/photography-gear-reviews/reviews/canon-17-40mm-f4l-lens-review
- Canon 17-40mm Image quality is a significant step up from the kit lens with good sharpness across the frame. The low light performance is limited due the the constant f/4 aperture but a boost in ISO will still make it useable and it is still better than the f/5.6 kit lens.
Lifetime Review of the Canon EF 17-40mm f/4L USM Lens
- https://fstoppers.com/originals/lifetime-review-canon-ef-17-40mm-f4l-usm-lens-379952
- none
Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom …
- https://www.amazon.com/Canon-17-40mm-Ultra-Angle-Cameras/dp/B00009R6WO
- 17 40 millimeter ultra wide angle zoom lens with f/4 maximum aperture for Canon SLR Cameras. Diagonal angle of view 104° 57° 30' 3 aspherical lens elements and super UD glass element create superior optics in all …
Canon EF 17-40mm f/4L USM Lens Review - The-Digital …
- https://www.the-digital-picture.com/Reviews/Canon-EF-17-40mm-f-4.0-L-USM-Lens-Review.aspx
- The 17-40 L makes a great second or third lens in a full frame kit. Wide landscape photography is a very popular use for this lens Use wide angles to emphasize an object in the foreground against an attractive (and mostly in-focus) background. Or use it to simply take in a very wide field of view.
Canon 17-40mm f/4 L Review - Ken Rockwell
- https://www.kenrockwell.com/canon/lenses/17-40mm.htm
- This 17-40mm L lens is for full-frame, film and 1.3x cameras like the 1D series. The17-40mm f/4 and 16-35mm f/2.8 work great on the 1.6x sensor cameras ( Rebel, 30D, 20D ), but for those cameras the 18-55mm EF-S lens, for one sixth the price, is lighter and more agile. None of these is wide on a 1.6x camera.
Review: Canon EF 17-40mm f/4 L USM (updated 2021)
- https://www.lensora.com/lens.asp?id=14
- No matter if you are have the focus ring and focal length at 17 mm or at 40 mm the aperture value can be f/4. The lens lacks image stabilization, which otherwise os good for avoiding the blur that can occur when using slow shutter speeds. Read more about the aperture and lens brightness Read more about how an image stabilizer works
Astrophotography For Beginners: A Complete A-Z Guide …
- https://nightskypix.com/beginners-guide-to-astrophotography/
- Let’s use a Rokinon 14mm f/2.8 lens on a full-frame DSLR camera for an example. You divide 500 by 14 (14mm Focal Length), which equals 35.71 seconds. Round it down a little and 35 seconds is the shutter speed (exposure) you should use …
Astrophotography for Beginners (6 Steps to Amazing Space Photos)
- https://skiesandscopes.com/astrophotography-for-beginners/
- 3. Exposure length. This is the amount of time that your camera will take to collect light for one image. There is a good rule of thumb for working out the exposure length you should use for astrophotography which is called the 500 rule. This is worked out by dividing 500 by the focal length of the lens.
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