photoni Posted March 17, 2023 Share Posted March 17, 2023 Castellani, A. (2023) Narcissus sp. L. (Amaryllidaceae) Daffodil. Photographic studies of the flower under various alternate light filters. Also an example of the Collodion Wet Plate Process. LINK Location: Verona, Italy 16 March 2023 Cultivar in home garden References: accessed 11 July 2023 https://en.wikipedia.org/wiki/Narcissus_(plant) https://en.wikipedia.org/wiki/Collodion_process Collodion Wet Plate Process using lithium formula. On anodized aluminum (4x5 inches) using a Petzval "no-name" 300mm lens from ~1860. f/4.5 with 2 shots from a 4000W flash held 12" from subject. Visible: Nikon Z5 (stock) + MC 105 mm lens. Sony A7 (full-spectrum) with the Petzval "no-name" 300mm lens. 1. Visible: QB39 (1.5mm) 2. Collodion wet plate emulation 3. TSN+QB29 4. TSN+ZWB3 5. UV: TSN+ZWB2 6. UV: TSN+ZWB1 Sony A7 (full-spectrum) with a Rodenstock Sironar 180 mm lens. f5.6 > 45 1. Visible: Nikon Z5 (stock) 2. Collodion wet plate emulation 3. Mixed Light: TSN+QB29 4. Mixed Light: TSN+QB29 5. Mixed Light: TSN+ZWB3 6. Mixed Light: TSN+ZWB3 7. UV: TSN+ZWB2 8. UV: TSN+ZWB2 9. UV: TSN+ZWB1 10. UV: TSN+ZWB1 9 of the preceding 10 photos rendered in Black & White. Link to comment
colinbm Posted March 17, 2023 Share Posted March 17, 2023 Wow, you have got all sorts here. Link to comment
Nate Posted March 17, 2023 Share Posted March 17, 2023 Great shots Toni! I like seeing this with the different filter combos Link to comment
dabateman Posted March 17, 2023 Share Posted March 17, 2023 Excellent, I have some daffodils now too and was thinking of doing something similar. Link to comment
photoni Posted March 18, 2023 Author Share Posted March 18, 2023 21 hours ago, colinbm said: Wow, you have got all sorts here. I found two other types! 14 hours ago, Nate said: I like seeing this with the different filter combos I also made this with different combinations of filters and a white Teflon, now I have to develop them well. Link to comment
Yves W Posted March 18, 2023 Share Posted March 18, 2023 Thanks, very interesting and beautiful. Link to comment
photoni Posted March 23, 2023 Author Share Posted March 23, 2023 These are the Sony A7 fs images, with UV filters (color calibrated with teflon) converted to black and white Link to comment
photoni Posted March 23, 2023 Author Share Posted March 23, 2023 These images are made with 120 format film, Fomapan 100 iso, Rodenstock Sironar 180 mm lens with UV filters. Unfortunately there was a problem, the developer didn't cover all the negative and left a clear area to the left of the images. Link to comment
Nate Posted March 24, 2023 Share Posted March 24, 2023 Nice contrast on the images Toni Link to comment
OlDoinyo Posted March 24, 2023 Share Posted March 24, 2023 Now try ZWB1 with wet plate... Link to comment
photoni Posted March 24, 2023 Author Share Posted March 24, 2023 1 hour ago, OlDoinyo said: Now try ZWB1 with wet plate... Yes I would like to try with ZWB1 , 2 , 3 wet plate (one graph says collodion sees up to 325nm) The problem is that the base sensitivity is 1 or 2 iso with the filter it would be 4~6 stops less Link to comment
OlDoinyo Posted March 26, 2023 Share Posted March 26, 2023 On 3/24/2023 at 5:33 PM, photoni said: Yes I would like to try with ZWB1 , 2 , 3 wet plate (one graph says collodion sees up to 325nm) The problem is that the base sensitivity is 1 or 2 iso with the filter it would be 4~6 stops less Perhaps the easiest trial would be a landscape shot, given 1-2 hours' exposure if needed; if it happens to include some UV-distinctive flowers, so much the better. Would that be possible without excessive drying of the plate? Link to comment
photoni Posted March 26, 2023 Author Share Posted March 26, 2023 5 hours ago, OlDoinyo said: On 3/24/2023 at 10:33 PM, photoni said: Perhaps the easiest trial would be a landscape shot, given 1-2 hours' exposure if needed; if it happens to include some UV-distinctive flowers, so much the better. Would that be possible without excessive drying of the plate? @OlDoinyo Thanks for the idea but... it's called a wet plate, drying takes place in 5 - 15 minutes depending on the temperature and humidity, you can't prolong the exposure that much. However the result should be the same as Orthochromatic film with only ZBW1 - 2 - 3 (or to a normal panchromatic as I did above, adding a TSN / QB39 / BG39 filter) I did a test, all photographic films (even infrared) see up to 300 ~ 350 nm I guess they are the same as glass negatives (Dry Plate) made by an American firm (Jason Lane) and a Slovenian firm (Zebra) these are also orthochromatic Link to comment
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