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| A Nikkor 500mm f5.6 PF ED VR is coming? - Page 5 | |
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| Posted: Sun Oct 21st, 2018 11:18 |
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41st Post |
jk
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Iain wrote:jk wrote: See later posts#28 & 30. This was duff info from Ken Rockwell website!
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Sun Oct 21st, 2018 18:07 |
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42nd Post |
Graham Whistler
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Another from yesterdays first shoot with the new 500mm f5.6 lens. I picked this because the bird was on the ground in deep shadow and the exposure of 1/320 sec at f5.6 was in effect F8 as the x1.4 was on and the raw file was 1.5 stops underexposed and needed to be pulled up in post processing. ISO was on 2600 and there was no time to turn it up without losing the shot. There is some noise but the pix will win no awards but focus held this is using 50% ot he D850 NEF Raw file. More to come later as I get to grips with the new lens all good so far there are 4 focus point storage buttons round the lens and using the memory recall buttond AF-L for learn and Centre setting recall and right hand AF-on. I have never had this on a Nikon lens so its new to me and looks very interesting.I will report more when I have read instructions and done tests in action! Attachment: Chaffinch NR1948.jpg (Downloaded 44 times)
____________________ Graham Whistler |
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| Posted: Mon Oct 22nd, 2018 04:37 |
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43rd Post |
Eric
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Graham...can I just ask whether the lens is front focusing a tad? Assuming you focused on the bird there seems to be more dof in front of the bird than behind. I also wondered this about the goldfinch photo where the head is a tad softer than the tail ....as you have shot slightly upwards. Of course they are always moving their heads so it may be shutter speed not frozen her. Maybe it's my eyes. 
____________________ Eric |
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| Posted: Mon Oct 22nd, 2018 05:04 |
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44th Post |
Graham Whistler
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I think in each picture I was focused on the wing, they were moving about so much it was hard to get spot on head also both are wide open with a 700mm lens. I have done tests with a lens test chart yesterday and no problems with wide open.It was very dark under tree with Chaffinch took three and that was best other two no good. I also plwyed with this new, to me, memory recall system might have messed up some of the pixs. Take time now and read instructions.If any of you out there used this recall focus system please post a bit of help?
____________________ Graham Whistler |
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| Posted: Tue Oct 23rd, 2018 06:37 |
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45th Post |
Graham Whistler
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Thank you Eric for some good help on Auto Focus checking, did your DOF test with lens at F5.6 focus spot on and not too far forward as you said it might be. Re the new memory features: Pix No 1 is Memory Recall Pix No2 Mem Set and when holding camera is on the right side near lens mount. No 3 is Focus Function button and these are at end of lens above focus ring, there are 4 of them I each at Top, Bottom, L & R. You can also use them to use auto focus at any time. To use to store a focus point (eg a post top a bird may come to) set recall to AF-L, focus on post and press Memory Set to save it now return Mem Recall to centre position. Carry on using camera in normal way. If bird comes to post as stored all you need to do is press any one of the 4 Focus Function Bottons at end of lens.Setting is not lost if you turn camera off. I have also reset as per a3 in D850 book: focur tracking to Quick and Subject Morion to Erratic for birds. New lens now working very well focus sorted! QED it works well. Took me some time to sort out but all info in instructions for new lens plus D850 instruction book. Attachment: 500mm Lens.jpg (Downloaded 37 times)
____________________ Graham Whistler |
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| Posted: Tue Oct 23rd, 2018 14:33 |
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46th Post |
Eric
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Graham Whistler wrote:Thank you Eric for some good help on Auto Focus checking, did your DOF test with lens at F5.6 focus spot on and not too far forward as you said it might be. Good to see you are making progress Graham. I see from bottom of your photo 1 it's even got a music button  One point on the Tracking settings. If you have the speed set to Quick it will grab focus as it sees something quickly. BUT... if the moving subject you are tracking goes behind another object ( for eg a bird flies behind a tree) the focus will Quickly switch to the tree in front. If you set the focus's speed more towards Delayed ...it does just that. It waits a moment before shifting focus to the tree. So doing, it gives the bird time to emerge from the other side of the tree still in focus. It's one of those catch 22 situations.  I could imaging trackingðŸ¦ðŸ¦“ðŸ¦ðŸ— moving through long grass in Kenya it might recommend more Delayed weighting to keep focus locked.
____________________ Eric |
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| Posted: Tue Oct 23rd, 2018 14:38 |
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47th Post |
Eric
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Graham ....we were talking about the difference between A/M and M/A on the lens.... https://www.nikonimgsupport.com/eu/BV_article?articleNo=000006502&configured=1&lang=en_GB&sfdcIFrameOrigin=null
____________________ Eric |
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| Posted: Tue Oct 23rd, 2018 17:23 |
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48th Post |
Graham Whistler
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Eric thanks for that point taken but tracking larger animals with perhap 200-300 mm lens is not as hard as getting a small fast eratic moving bird sharp and in focus with a 700mm lens. I have always tended to use M/A but now understand things a lot better. I still do not trust Auto focus 100% and in past I have been glad to take over mauual. This new lens works very well with M and viwefinder on D850 helps M focus almost as good as the old days with film cameras!
____________________ Graham Whistler |
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| Posted: Wed Oct 24th, 2018 04:24 |
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49th Post |
Eric
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Graham Whistler wrote:Eric thanks for that point taken but tracking larger animals with perhap 200-300 mm lens is not as hard as getting a small fast eratic moving bird sharp and in focus with a 700mm lens. I have always tended to use M/A but now understand things a lot better. I still do not trust Auto focus 100% and in past I have been glad to take over mauual. This new lens works very well with M and viwefinder on D850 helps M focus almost as good as the old days with film cameras! Yes, I understand the different lens requirement on those subjeypcts but the camera can be changed to better suit the circumstance as well. What I should have said was that if you assign a custom bank with Quick focusing setting ....you can set another with the Delayed setting. If the subject demanded one or the other, you can switch instantly on a function button.
____________________ Eric |
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| Posted: Wed Oct 24th, 2018 05:23 |
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50th Post |
Graham Whistler
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Thans again yes I do use function buttons and have done for years on pro video camcorders. Problem is in heat of moment you can forget to use them. In some way I think theses extra focus buttons round end of the new lens may be one too many functions to put you off getting the pix!
____________________ Graham Whistler |
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