Hi Izzie,Quote:
Originally Posted by IzzieK
The Fresnel lens is supposed to double the distance of the flash and mine is rated GN 190, so at aperture of f/16 I should have coverage of 17 feet x 2=34 ft. I'd estimate that I was at least 40 feet from the bird so barely enough fill light provided. I think my real issue for this shot though was focal length. Also, if I had been shooting at f/4 I would have had at least 95ft coverage with the Better Beamer. Additionally, my ISO is much higher than is assumed when calculating flash distance. Used the following to calculate:
GN/F/stop =flash to subject distance.
Fresnel Lens
Printable View
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1st June 2016, 09:07 AMShadowmanRe: Fresnel Lens Other attempts
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2nd June 2016, 06:39 AMIzzieKRe: Fresnel Lens Other attempts
Thanks for the info. If and when I am allowed to go outside the house (or even just in my backyard) at night or my trip soon, I will try to use a beamer. I will order one tomorrow at B&H...it is not that expensive...
Quote:
Originally Posted by Shadowman
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2nd June 2016, 11:01 PMShadowmanRe: No Fresnel Lens Available
I didn't need the Fresnel lens for this capture nor did I have it with me. My friend spotted this bird a few days ago and she told me of its odd behavior, the bird started shrieking as she stumbled upon it; and I figured there must be a ground nest nearby. Today we went looking for it and again it immediately began shrieking, we spotted another about five feet away which was probably where the nest was hidden. I used my friend as bait and she approached the bird while I got a few shots from about a distance of ten feet. We were able to quickly identify the bird as the Killdeer and it does what is called a "broken wing" defense against predators, it will pretend to be injured to distract while the nest is safely a few feet away. I didn't want to distress the bird too much so only took about five shots and decided to give the bird some peace of mind.
http://i64.tinypic.com/2s0i9w9.jpg
f/22, ISO 1000, 1/250sec -
2nd June 2016, 11:47 PMShadowmanRe: No Fresnel Lens Available
Taken around same time as the killdeer, could've used the Fresnel lens here and a bit more focal length.
http://i63.tinypic.com/2iiifc2.jpg
A crow and red-winged black bird. -
3rd June 2016, 06:00 AMIzzieKRe: No Fresnel Lens Available
The first one looks good at F22 but why ISO 1000? Did you really need all those at 1/250 SS or was this because you chose Auto ISO? Just curious...
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3rd June 2016, 08:51 AMShadowmanRe: No Fresnel Lens AvailableHi Izzie,Quote:
Originally Posted by IzzieK
Auto ISO, Nikon loves to expose to the right.:) Thanks for commenting. -
4th June 2016, 11:31 PMShadowmanRe: Fresnel Lens used on this
Used the Fresnel on this shot, bird was too close to fully composed but grabbed the shot anyway.
f/8, ISO 200, 1/200sec
http://i68.tinypic.com/5x5vmp.jpg -
5th June 2016, 07:06 AMIzzieKRe: Fresnel Lens used on this
That is really a cutie bird -- the shot is good with that lens --very clear.'Hope you did not step on it, the bird I mean...
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5th June 2016, 09:27 AMShadowmanRe: Fresnel Lens used on thisHi Izzie,Quote:
Originally Posted by IzzieK
The bird survived the encounter, very friendly bird and would hop onto the picnic table I was sitting at looking for scraps. Thanks for commenting. -
1st July 2016, 10:53 PMShadowmanRe: Fresnel Lens used on this
Another encounter when I didn't have the Fresnel lens and in shady environment. Cropped about 30%.
f/5.6, ISO 400, 1/160sec, 270mm
http://i67.tinypic.com/jsnbrp.jpg -
2nd July 2016, 06:49 AMIzzieKRe: Fresnel Lens used on this
How big is that lens you are carrying around?
Is the one you are using the Nikkor 300 mm F/4E PF ED VR?
Just curious... -
2nd July 2016, 09:34 AMShadowmanRe: Fresnel Lens used on thisIt's the 70-300mm Nikon, it weighs about 26 ounces but gets heavy after a day of carrying the lens. Thanks for commenting.Quote:
Originally Posted by IzzieK
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2nd July 2016, 11:23 AMrtbaumRe: Fresnel Lens used on thisIzzie, This is with the Nikkor 300mm F/4 PF ED VR with 1.4 teleconverterQuote:
Originally Posted by IzzieK
http://i64.tinypic.com/2hi4590.jpg
Weighs about 26 oz. -
2nd July 2016, 01:33 PMDave HumphriesRe: Fresnel Lens used on thisI'm surprised, it doesn't look that big :DQuote:
Originally Posted by rtbaum
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3rd July 2016, 06:27 AMIzzieKRe: Fresnel Lens used on this
NOw that I had googled this lens, for that price at nearly $2K, how often do you use it? The results looks good even without and with the TC...
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3rd July 2016, 01:26 PMrtbaumRe: Fresnel Lens used on this
Izzie- As you may have noted, bird photography is one of my principal venues. Last year, I made the decision that my my antiquated Sigma 400mm telemacro f/5.6 without IS would be replaced. My criteria were Image stabilization, more speed, and I wanted to be able to hike with it. Going into my local brick and mortar, I planned on picking up the Nikkor 200-500mm 5.6 or Tamron 150-600 f/5-6.3 Sp. I was put off by the belief that both lenses are quite heavy and seemed unbalanced to me when at full extension. The sales person suggested that I try the 300 pf and it has all the qualities that I was looking for. I am quite pleased at present with the lens; I can shoot hand held quite nicely, autofocus is responsive, and as you noted works well with a TC.
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4th July 2016, 09:04 AMIzzieKRe: Fresnel Lens used on this
About time to think about this for my wedding anniversary or Christmas, damn! what is the nearest holiday? I missed out on Independence Day!!! I kinda like the handholding part...:p
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Originally Posted by rtbaum
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4th July 2016, 11:29 AMShadowmanRe: Fresnel Lens used on thisWe should invent a new holiday, how come no one celebrates Happy Brother/Sister Day or Happy God Mother/God Father Day?Quote:
Originally Posted by IzzieK
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4th July 2016, 12:51 PMrtbaumRe: Fresnel Lens used on thisI called it, "it's my birthday and I have money burning a hole in my pocket" DayQuote:
Originally Posted by Shadowman