Posts for: JayRay
May 4, 2018 09:32:19 #
Excellent IR photographs!
blacks2 wrote:
Taken with a p&s Panasonic TZ3.
May 4, 2018 09:23:25 #
In this application, if you use a round rubber lens hood that screws into the front of the polarizer then you can easily rotate both the CP filter and round lens hood by spinning the lens hood. It is always cumbersome to reach inside of a "petal" shaped lens hood (that rigidly mounts to the lens) and rotate a CP filter.
J2e wrote:
I doubt this will work.
The hood is normally fitted to the lens, not to the filter.
The hood is normally fitted to the lens, not to the filter.
Apr 23, 2018 08:55:54 #
Great photograph!
MikeBl wrote:
Bald Eagle (Haliaeetus leucocephalus)
W. Kentucky, USA - 4/20/2018
Please view in download for best detail.
W. Kentucky, USA - 4/20/2018
Please view in download for best detail.
Apr 23, 2018 08:53:50 #
Apr 14, 2018 08:24:09 #
I highly recommend the View Hotel.
It is pricey, BUT it is on site and you can get incredible sunrise, sunset (golden hour with golden glow and blue light at twilight), star, Milky Way, and moon rise shots all from the private balcony at your room (rooms all face east)! Get a top (3rd) floor "star view" room as far away from the lobby as is available (get reservations far in advance during peak travel times). Recommend a minimum stay of 2 nights. The 17 mile loop drive is a must for both (early) morning and late afternoon.
It is pricey, BUT it is on site and you can get incredible sunrise, sunset (golden hour with golden glow and blue light at twilight), star, Milky Way, and moon rise shots all from the private balcony at your room (rooms all face east)! Get a top (3rd) floor "star view" room as far away from the lobby as is available (get reservations far in advance during peak travel times). Recommend a minimum stay of 2 nights. The 17 mile loop drive is a must for both (early) morning and late afternoon.
shieldsadvert wrote:
Trying to decide how long to spend in Monument Valley. Initial thought is to take an early morning guided tour then do the 4-mile loop trail mid-day then drive do the 17-mile drive in the late afternoon then drive to Mexican Hat that night for lodging. Is that a good plan for photography?
Apr 3, 2018 21:27:30 #
Apr 3, 2018 21:25:15 #
Apr 2, 2018 22:32:35 #
Thanks cameraf4 for info!
cameraf4 wrote:
Thanks, JayRay. I know of 3 viewpoints for the arch. The most common view (think Utah License plates) involves a pretty grueling 3 mile hike, much beyond my aged abilities. The easiest is about 50 yards from a parking lot, but the view is VERY distant (think big telephoto). But about a mile beyond the parking lot up an easier (but still fairly hefty)rise than Viewpoint No.1 is where I was for my shot. I wanted morning and the most common location looks into the rising sun.
Apr 2, 2018 08:52:01 #
Great photos! At what location was your Delicate Arch photo taken from (along the trail or an overlook parking location)?
Apr 1, 2018 08:48:00 #
Mar 19, 2018 21:28:16 #
I agree that we have destroyed the topic!
Have fun with the stars!
Have fun with the stars!
bwana wrote:
I totally agree. The actual star trails are the s... (show quote)
Mar 19, 2018 09:53:50 #
True, it is a crop, but in the process of cropping it is the equivalent of magnifying because that is what happens when you print the image from the full frame sensor camera and the image from the crop frame sensor camera (both with the same lens) to the same size. Try it! That is the way it works!
bwana wrote:
Of course, you're going to see the star trail bein... (show quote)
Mar 18, 2018 23:29:45 #
BWA: The application of the 500 rule has nothing to do with photosites but with the length of a star trail across the sensor. Forget about photosites and use a film example: If you used a 50 mm lens on a 35 mm film camera and opened the shutter for one minute and then measured the length of the resulting star trail and then put on a 75 mm lens (equivalent of a 1.5 crop factor on a digital camera) on the same 35 mm camera and opened the shutter for one minute..you will find the length of the star trail is 1.5 times as long as the star trail with the 50 mm lens. It has nothing to do with photosites. Books by Jennifer Wu (Photography Night Sky) and Gabriel Biderman/Tim Cooper (Night Photography) also confirm that the 500 rule DOES involve sensor size (crop factor) as outlined in my earlier reply on this string.
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bwana wrote:
Yes, the "apparent motion" across the sensor is greater; no disagreement on this point. BUT the actual photosites impacted by star movement, i.e.: the actual star trailing, is identical for a crop sensor vs. a full frame camera with the same lens and same size photosites. Very simple to prove... Just compare the star trailing at full scale and you'll see it is the same.
bwa
bwa
Mar 17, 2018 09:35:31 #
A camera with a crop frame sensor has a smaller field of view than a full frame sensor camera.
Therefore, in a crop frame sensor camera the time for a star to traverse the sensor (15 degrees per hour) is less than in a full frame sensor camera. Hence the apparent motion across the sensor is proportionally greater in a crop sensor camera and this needs to be proportionally accounted for in the equation to eliminate motion blurring of the stars. You can Google this topic for further insight and explanation.
Therefore, in a crop frame sensor camera the time for a star to traverse the sensor (15 degrees per hour) is less than in a full frame sensor camera. Hence the apparent motion across the sensor is proportionally greater in a crop sensor camera and this needs to be proportionally accounted for in the equation to eliminate motion blurring of the stars. You can Google this topic for further insight and explanation.
bwana wrote:
And why exactly would crop factor come into play in the 500 Rule?
The sky moves at 15°/hr and in any given amount of time moves across the same number of photosites on a crop mode sensor as it does on a full frame sensor, assuming the photosites are the same size; thus, the same trailing.
bwa
The sky moves at 15°/hr and in any given amount of time moves across the same number of photosites on a crop mode sensor as it does on a full frame sensor, assuming the photosites are the same size; thus, the same trailing.
bwa
Mar 15, 2018 00:00:11 #
Gene51 wrote:
A couple of things. The exposure settings for a sh... (show quote)
The above reply is incorrect.
The application of the 500 rule IS dependent upon sensor size! Maximum exposure time in seconds = 500/ (focal length of lens in mm × crop factor) where the crop factor is 1.0 for a full frame sensor.