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Using the Hoya 25A Red filter for B&W photography
- https://www.davidkennardphotography.com/blog/790-using-the-hoya-25a-red-filter-for-bw-photography.xhtml
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25A (Red) Filter on a Digital Camera: Samples and …
- https://www.dpreview.com/forums/thread/2801992
- A Bayer filter has two green cells to every one red or blue cell. When you shoot through a 25A, you throw away 3/4 of the sensor data. If you don't filter the camera, even a very simple "demosaic" algorithm gives it 40% (one full paper size) higher resolution on the green channel than on the red or blue.
Hoya 25A - Red Filter | Free shipping w/ $25 Purchase
- https://hoyafilterusa.com/products/hoya-25a-red
- The Hoya 25A red filter increases contrast in black & wHoya 25A - Red Filter | Free shipping w/ $25 Purchasehite photography, darkens blue skies, makes …
B+W photography: 23A vs 25A red filters - Photrio.com …
- https://www.photrio.com/forum/threads/b-w-photography-23a-vs-25a-red-filters.17086/
- It seems to me that the 25A filter is the most common red filter. It gives very strong results - as in, it is easy to really over-do it with one. Having said that, I would not be without mine - but only along with a yellow and an orange filter. They all have their place, and have to be used with some "control", especially the reds.
HOYA 58mm RED 25A PHOTOGRAPHIC LENS FILTER
- https://www.amazon.com/Hoya-Red-25A-Filter-red/dp/B00008XRUA
- HOYA 58mm RED 25A PHOTOGRAPHIC LENS FILTER Brand: Hoya 1 rating Currently unavailable. We don't know when or if this item will be back in stock. Darkens blue creating dramatic contrast between sky and clouds. Creates greater contrast between flowers and foliage. Used in scientific photography. Excellent for copying blueprints.
Hoya 52RED-25A 52mm Red Photo Filter - amazon.com
- https://www.amazon.com/Hoya-52mm-Red-25A-Filter/dp/B00006I5BO
- Price: $17.85. This fits your . Make sure this fits by entering your model number. 52mm red photo filter. Designed for black & white photography. Increases contrasts for dramatic cloud-effects in landcape photography. Can also be used with color and infrared photo situations. New & Used (5) from $9.99 & FREE Shipping.
Midwest Photo Omega Red 25A Filter
- https://mpex.com/omega-red-25a-filter.html
- See all 17 Photography Categories Here. Lighting. Continuous Lighting. Strobe Lighting. Flashes & On-Camera Lighting. Light Modifiers. See all 11 Lighting Categories Here. Video. ... Omega Red 25A Filter. Manufacturer: Omega. Our Part Number: OME1015. Manufacturer Part No: 67mm r1 666725R. Backorder. Ship Time: Please LiveChat or Email For Time ...
Hoya 52mm HMC Red 25A Screw-in Filter - amazon.com
- https://www.amazon.com/Hoya-52mm-Multi-Coated-Glass-Filter/dp/B0000AI1FY
- Amazon.com : Hoya 52mm HMC Red 25A Screw-in Filter : Camera Lens Color Correction And Compensation Filters : Electronics Skip to main content ... 5.0 out of 5 stars Red filter for B&W photography. Reviewed in the United Kingdom on September 12, 2016. Color: RedSize: 58mm Verified Purchase.
What is the difference between Red 25 and Red 25a?
- https://www.photrio.com/forum/threads/what-is-the-difference-between-red-25-and-red-25a.55464/
- Strange as both the 25 and 25A are Wratten filter numbers, the 25 was a colour separation filter for Tri-Colour work. Wratten existed as a seperate company before becoming part of Jodak in 1912. The two senior directors of Wratten then formed the two major Kodak Reaearch facilities at Harrow (UK) and Rochester (US).
Red #25a | Photo.net Photography Forums
- https://www.photo.net/discuss/threads/red-25a.186213/
- a Red #25a filter is a color contrast filter for black and white film. It transmits it's own color (ie lightens it in the print) and absorbs it's complimentary color (darkens it in the print). So a red 25a will lighten red and darken cyan (blue and green) in the print. Thats ALL it does
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