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#12
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Macro wide open - ??
On Jun 3, 2018, Paul Carmichael wrote
(in article ): On 03/06/18 15:57, android wrote: On Sun, 03 Jun 2018 15:36:12 +0200, Paul Carmichael wrote in : What is is with you? Did you not read what I wrote? Sure did. You can't take the heat well, do ya? And what complaint are you talking about? This one: Why does my macro lens (Tamron SP90) open up to 2.5? So it's made that way! Unless it's to take photos of a molecule, what's the point? With your lense? I does focus beyond 5cm don't it? Seeing these responses makes me think, what's the point? I give up. There are times it is worthwhile engaging in a conversation, and then there are times it is best to just withdraw. -- Regards, Savageduck |
#13
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Macro wide open - ??
On Sun, 03 Jun 2018 09:43:10 -0700, Savageduck
wrote: On Jun 3, 2018, Paul Carmichael wrote (in article ): On 03/06/18 15:57, android wrote: On Sun, 03 Jun 2018 15:36:12 +0200, Paul Carmichael wrote in : What is is with you? Did you not read what I wrote? Sure did. You can't take the heat well, do ya? And what complaint are you talking about? This one: Why does my macro lens (Tamron SP90) open up to 2.5? So it's made that way! Unless it's to take photos of a molecule, what's the point? With your lense? I does focus beyond 5cm don't it? Seeing these responses makes me think, what's the point? I give up. There are times it is worthwhile engaging in a conversation, and then there are times it is best to just withdraw. As the actress said to the Bishop? -- Regards, Eric Stevens |
#14
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Macro wide open - ??
On 6/3/2018 7:42 AM, Paul Carmichael wrote:
On 03/06/18 06:01, android wrote: On Sat, 02 Jun 2018 10:01:22 +0200, Paul Carmichael wrote in : On 01/06/18 19:09, android wrote: On Fri, 01 Jun 2018 18:33:36 +0200, Paul Carmichael wrote in : On 01/06/18 17:39, android wrote: On Fri, 01 Jun 2018 11:30:25 -0400, nospam wrote in lid: In article , android wrote: Why does my macro lens (Tamron SP90) open up to 2.5? Does it ? as it seems to state f2.8 on the web. It could be that the firmware of the camera has access to the lense T value in its database. PC uses a fairly modern EOS 6D mark II, IIRC. There is according to DxO Mark two different Tammies 90SP one T/3.0 and the other, newer T/3.3. The latter would be more like 2.5 rather than 2.8 if the former is used for reference... HTH! or it could actually be f/2.5 http://www.adaptall-2.com/lenses/52B.html Sure. But that would not be reported from lense to camera. I chipped the adaptall. So yes, it is. Then you would need to program the chip to report that that you want it to report... Well obviously. And knowing that the lens is 2.5-22, that's what I programmed it as. You were kind enough to post a link to a picture with the full exif, and it does not seem to be programmed at all: I don't get your point. Do you know how these chips work? The chip tells the camera that it's a 90mm lens. I have to tell the camera the aperture setting. It won't let me go below 2.5 or over 22 (I "programmed" the chip to know it's a 90mm lens with aperture between 2.5 and 22). What I tell the camera is what's reported in the exif. Obviously the chip can't know what I've set the aperture to. Also, the chip enables focus confirmation. They are generally sold as "focus confirmation chips". Exif: Â*Max Aperture Value - 2.5 Could something similar to this be your problem https://www.dpreview.com/forums/thread/2248343 -- PeterN |
#15
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Macro wide open - ??
On 6/4/2018 5:35 AM, Paul Carmichael wrote:
snip Could something similar to this be your problem https://www.dpreview.com/forums/thread/2248343 No. I don't have a problem (well, that would interest anyone here). This thread seems to have gone a bit wonky. I simply asked a question about the usability of large apertures on a macro lens. No problems, no complaints, just curiosity. BTW, it's a manual lens. I us MF on a lot of my macro shots. I also use high speed sync; i set manual mode for shutter speed and exposure, to black out the background, and make it blurry. I have to keep adjusting for lighting conditions. Here is a test shot from yesterday. it is a RAW file so anyone who downloads the file has a non-exclusive right to analyze it and play to your hearts content. I must add, that use of this file is for personal use in learning, only. I retain all right of copyright ownership. If you want to use the image, or any derivation, for any purpose, other than personal learning, you must ask for my permission. https://www.dropbox.com/s/k35yio67hkcd7uy/20180603_cars%20antique%20flowers_6824.NEF?dl=0 -- PeterN |
#16
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Macro wide open - ??
On Jun 4, 2018, PeterN wrote
(in article ): On 6/4/2018 5:35 AM, Paul Carmichael wrote: snip Could something similar to this be your problem https://www.dpreview.com/forums/thread/2248343 No. I don't have a problem (well, that would interest anyone here). This thread seems to have gone a bit wonky. I simply asked a question about the usability of large apertures on a macro lens. No problems, no complaints, just curiosity. BTW, it's a manual lens. I us MF on a lot of my macro shots. I also use high speed sync; i set manual mode for shutter speed and exposure, to black out the background, and make it blurry. I have to keep adjusting for lighting conditions. Here is a test shot from yesterday. it is a RAW file so anyone who downloads the file has a non-exclusive right to analyze it and play to your hearts content. I must add, that use of this file is for personal use in learning, only. I retain all right of copyright ownership. If you want to use the image, or any derivation, for any purpose, other than personal learning, you must ask for my permission. https://www.dropbox.com/s/k35yio67hkcd7uy/20180603_cars%20antique%20flowers_6824.NEF?dl=0 I actually like what you have done with this shot with regard to the shallow DoF and OoF background. My only beef is the bud and stem on the left seem to be in sharper focus than the actual flower with its stamens, which is great if that ws what you intended. If I intended to have the entire flower, stem, and buds in focus I might have considered focus stacking/bracketing. -- Regards, Savageduck |
#17
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Macro wide open - ??
On 6/4/2018 10:54 AM, Savageduck wrote:
On Jun 4, 2018, PeterN wrote (in article ): On 6/4/2018 5:35 AM, Paul Carmichael wrote: snip Could something similar to this be your problem https://www.dpreview.com/forums/thread/2248343 No. I don't have a problem (well, that would interest anyone here). This thread seems to have gone a bit wonky. I simply asked a question about the usability of large apertures on a macro lens. No problems, no complaints, just curiosity. BTW, it's a manual lens. I us MF on a lot of my macro shots. I also use high speed sync; i set manual mode for shutter speed and exposure, to black out the background, and make it blurry. I have to keep adjusting for lighting conditions. Here is a test shot from yesterday. it is a RAW file so anyone who downloads the file has a non-exclusive right to analyze it and play to your hearts content. I must add, that use of this file is for personal use in learning, only. I retain all right of copyright ownership. If you want to use the image, or any derivation, for any purpose, other than personal learning, you must ask for my permission. https://www.dropbox.com/s/k35yio67hkcd7uy/20180603_cars%20antique%20flowers_6824.NEF?dl=0 I actually like what you have done with this shot with regard to the shallow DoF and OoF background. My only beef is the bud and stem on the left seem to be in sharper focus than the actual flower with its stamens, which is great if that ws what you intended. If I intended to have the entire flower, stem, and buds in focus I might have considered focus stacking/bracketing. Thanks for your comment. You have pointed out one of the issues with hand held MF. I posted that image only for the purpose of illustrating the use of high speed sync. Note that HSS only works with cameras that support it, and does not work with the built in flash on my D800. If and when I trade in my D800 for an 850, I will try focus stacking. -- PeterN |
#18
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Macro wide open - ??
On Jun 4, 2018, PeterN wrote
(in article ): On 6/4/2018 10:54 AM, Savageduck wrote: On Jun 4, 2018, PeterN wrote (in article ): On 6/4/2018 5:35 AM, Paul Carmichael wrote: snip Could something similar to this be your problem https://www.dpreview.com/forums/thread/2248343 No. I don't have a problem (well, that would interest anyone here). This thread seems to have gone a bit wonky. I simply asked a question about the usability of large apertures on a macro lens. No problems, no complaints, just curiosity. BTW, it's a manual lens. I us MF on a lot of my macro shots. I also use high speed sync; i set manual mode for shutter speed and exposure, to black out the background, and make it blurry. I have to keep adjusting for lighting conditions. Here is a test shot from yesterday. it is a RAW file so anyone who downloads the file has a non-exclusive right to analyze it and play to your hearts content. I must add, that use of this file is for personal use in learning, only. I retain all right of copyright ownership. If you want to use the image, or any derivation, for any purpose, other than personal learning, you must ask for my permission. https://www.dropbox.com/s/k35yio67hk...tique%20flower s_6824.NEF?dl=0 I actually like what you have done with this shot with regard to the shallow DoF and OoF background. My only beef is the bud and stem on the left seem to be in sharper focus than the actual flower with its stamens, which is great if that ws what you intended. If I intended to have the entire flower, stem, and buds in focus I might have considered focus stacking/bracketing. Thanks for your comment. You have pointed out one of the issues with hand held MF. I posted that image only for the purpose of illustrating the use of high speed sync. Note that HSS only works with cameras that support it, and does not work with the built in flash on my D800. If and when I trade in my D800 for an 850, I will try focus stacking. I got focus bracketing/stacking with the latest firmware update for my X-T2, it wasn’t included in the new FW for the X-E3. For focus stacking a tripod is a must. I have done a few experimental 24 frame stacks processed with Photoshop CC so that I can hone a workflow for focus stacking. What speedlight are you using? For my Nikon I have an SB-800 which has served me well for 15 years. For my Fujifilm cameras I have gone for a smaller Godox TT350f, and I have Godox X1T-F wireless trigger for off camera lighting. With that setup I can also use the TT350f, and/or the SB-800 as off camera slaves. http://www.godox.com/EN/Products_Mini_Camera_Flash_TT350F.html http://www.godox.com/EN/Products_Rem..._Flash_Tr igg er.html -- Regards, Savageduck |
#19
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Macro wide open - ??
On 6/4/2018 7:20 PM, Savageduck wrote:
On Jun 4, 2018, PeterN wrote (in article ): On 6/4/2018 10:54 AM, Savageduck wrote: On Jun 4, 2018, PeterN wrote (in article ): On 6/4/2018 5:35 AM, Paul Carmichael wrote: snip Could something similar to this be your problem https://www.dpreview.com/forums/thread/2248343 No. I don't have a problem (well, that would interest anyone here). This thread seems to have gone a bit wonky. I simply asked a question about the usability of large apertures on a macro lens. No problems, no complaints, just curiosity. BTW, it's a manual lens. I us MF on a lot of my macro shots. I also use high speed sync; i set manual mode for shutter speed and exposure, to black out the background, and make it blurry. I have to keep adjusting for lighting conditions. Here is a test shot from yesterday. it is a RAW file so anyone who downloads the file has a non-exclusive right to analyze it and play to your hearts content. I must add, that use of this file is for personal use in learning, only. I retain all right of copyright ownership. If you want to use the image, or any derivation, for any purpose, other than personal learning, you must ask for my permission. https://www.dropbox.com/s/k35yio67hk...tique%20flower s_6824.NEF?dl=0 I actually like what you have done with this shot with regard to the shallow DoF and OoF background. My only beef is the bud and stem on the left seem to be in sharper focus than the actual flower with its stamens, which is great if that ws what you intended. If I intended to have the entire flower, stem, and buds in focus I might have considered focus stacking/bracketing. Thanks for your comment. You have pointed out one of the issues with hand held MF. I posted that image only for the purpose of illustrating the use of high speed sync. Note that HSS only works with cameras that support it, and does not work with the built in flash on my D800. If and when I trade in my D800 for an 850, I will try focus stacking. I got focus bracketing/stacking with the latest firmware update for my X-T2, it wasn’t included in the new FW for the X-E3. For focus stacking a tripod is a must. I have done a few experimental 24 frame stacks processed with Photoshop CC so that I can hone a workflow for focus stacking. What speedlight are you using? I have 2 SB800s. I recently bought the 2nd one used, for $200. It cost me a little less than a Nikon commander, and serves as a flash on my D500. The guy I bought it from took very good care of his equipment, and did not use it a lot. For my Nikon I have an SB-800 which has served me well for 15 years. Mine has served me very well too, even after I dropped it, Nikon fixed the problem for about a hundred bucks. For my Fujifilm cameras I have gone for a smaller Godox TT350f, and I have Godox X1T-F wireless trigger for off camera lighting. With that setup I can also use the TT350f, and/or the SB-800 as off camera slaves. http://www.godox.com/EN/Products_Mini_Camera_Flash_TT350F.html http://www.godox.com/EN/Products_Rem..._Flash_Tr igg er.html I just picked up the LED to play with. I has a lot of potential for backlighting and light painting small areas. https://www.adorama.com/ltt22bubk.html -- PeterN |
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