canon 135mm f2 astrophotography

The shallow depth of field present at its maximum aperture does indeed create a pleasing bokeh. Ive been using kit lenses for the past year, favoring the Nikkor 50mm 2.8. To shoot indoors under typical gymnasium lighting, you often need f/2.0 or wider to get a shutter speed high enough to stop the action. Because it's an L-series lens by Canon, you can be sure that the image quality and performance of the 24-105mm meet the demanding aspects of astrophotography such as focus and star quality. Barney and Chris have been shooting the new Sony 50mm F1.4 GM, and we have a bunch of full resolution samples for you to peruse. Thomas, I do have no experience with the Canon lens you mentioned but zoom lenses have limitations concerning aberrations while providing more flexibility.The Nikkor 70-200/4 that I like as a travel lens is a very good performer but the Zeiss 135/2 APO is in a different league. I enjoied the use of this lens many years before the DSLR. Personally, I can't stand these circles, and I see them as VERY distracting.Lots of fads come and go, and this is just another one of these fads that some photographers are obsessed with. Same thing as people mistake "shallow DOF" to blurry background. The Rokinon 135mm F2.0 is considered to be a full-frame lens because it can accommodate a full-frame image sensor with its 18.8-degree angle of view. I had of course heard that this lens is supposed to be very sharp, but I had never before had such a full blown "wow" experience when reviewing the sharpness of a lens. http://www.radiantlite.com/2009/01/canon-135mm-f2l-usm-mini-review.html image quality wise it is by far one the sharpest lenses ive ever used. You can barely tell it's a pond.#3: Duck.Birds with bokeh are fine. (purchased for $900). Im currently shooting with a Canon 60D. The aperture range of this lens is F/2 to F/22, with 9 diaphragm blades (aperture blades) that work in harmony to set your f-stop. Touching the telescope, even ever so slightly, will introduce vibrations which will ruin the photograph. Super sharp from f2. 2 Dielectric Diagonals. When I was teaching photography in 70's at a junior college, I critiqued students photos, but I never did so harshly. (purchased for $900), reviewed December 4th, 2006 Using the lens's diaphragm interferes with the light path and results in diffraction spikes which I find unattractive. Everyone should have one? The closest Ive been to the 135mm range is 105mm on my Canon 24-105 zoom. I wanted to add my experience with some lenses that I thought worthy of being considered too, and some of the equipment that I have used. BirdDog P240 40X NDI PTZ Camera. Fit and finish are first-rate as well, with very smooth manual focus operation, and very fast autofocus on the camera. Holiday Savings $50 . What I see is a photographer who should maybe instead stick to the kit lens, and learn composition first. But you raise the exact point, that primes should be chosen with a 2x factor. I got mine for $60.00 on Craigslist but seen them on eBay for $100 and less all the time. One very popular lens for bokeh fiends is the Canon 85mm F1.2it can produce extremely creamy out of focus backgrounds.

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canon 135mm f2 astrophotography