Mr 14ex

Manufactured by Canon

Sourced in Japan

The Canon MR-14EX is a macro ring flash designed for close-up photography. It provides even, shadowless illumination for macro and close-up subjects. The flash features automatic exposure control, manual power adjustment, and a guide number of 14 (at ISO 100, m).

Automatically generated - may contain errors

Lab products found in correlation

Mp e 65 mm 1 5, by Canon (3 mentions) Coolpix 4500, by Nikon (1 mentions) Eos 5d mark 3, by Canon (1 mentions) Eos 450d, by Canon (1 mentions) Eos rebel t3i, by Canon (1 mentions) Pcp unc 15, by Hu-Friedy (1 mentions) Eos 60d, by Canon (1 mentions) Eos rebel t3i camera, by Canon (1 mentions) Eos 6d 2, by Canon (1 mentions) Eos kiss x5, by Canon (1 mentions) Ef s 60 mm macro lens, by Canon (1 mentions) Universal testing machine, by Instron (1 mentions) Mp e 65 mm, by Canon (1 mentions)

11 protocols using mr 14ex

Detailed Anatomical Documentation of Insect Specimens

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Legs were drawn on squared paper using a Reichert binocular microscope with an ocular screen. Details of the male and female genitalia were drawn by means of Abbe‘s drawing apparatus on a compound microscope (JENAVAL) at larger magnification (130–500×). Wings were photographed on the same microscope with an attached digital camera (Nikon COOLPIX 4500). Whole specimens were photographed by means of digital camera Canon EOS 5D Mark III with macro lens Canon MP-E 65 mm 1–5× and ring macro flash Canon MR-14EX.

, & Roháček J. (2016). Herniosina Roháček: revised concept, two new species, new key and atlas of male and female terminalia (Diptera, Sphaeroceridae). ZooKeys.

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Photographic Documentation of an Insect

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The only specimen examined was found when searching for insects sitting on a wall of a house in the Morávka village (Fig. 2) in the Moravskoslezské Beskydy Mts in the NE part of the Czech Republic (Fig. 1). The specimen was photographed alive (see Figs 3,6) by means of a digital camera Canon EOS 450D with a macro lens Canon MP-E 65 mm 1-5× and ring macro flash Canon MR-14EX. Because the insect moved rapidly is was immediately captured for further study. The specimen was caught into a vial and killed by ethyl acetate. The dead dry specimen was subsequently photographed by means of a modified ore microscope with an attached body of Canon EOS 450D. It was manually repositioned upwards between each exposure and the final photographs were compiled from multiple layers (30-35) using Helicon Focus 7. The obtained images were edited in Adobe Photoshop CS6. After photography the specimen was put into a vial with 70% ethanol. Identification was done by the first author. The voucher specimen is deposited in SMOC -Slezské zemské muzeum, Opava, Czech Republic.
Abbreviations: AOL -minimum distance between posterior ocellus and anterior ocellus; F1, F2, etc. -funicle segments one, two, etc.; FV -minimum width of frontovertex; POL -minimum distance between posterior ocelli.

Japoshvili G., Deml M., & Roháček J. (2021). First record of Microterys turanicus Sugonjaev, 1965 (Hymenoptera: Encyrtidae) from Europe. Acta Musei Silesiae. Scientiae Naturales, 70(1), 87-92.

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Tongue Papillae Visualization and Quantification

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The researcher stained the front section of participants’ tongues using blue coloring on sterile cotton swab, allowing FP to be visualized. The participant rested his or her chin on a table-mounted chin rest, and held their tongue between a specially-constructed transparent holder. This consisted of two clear plastic slides (VWR International), 25 mm × 77 mm in dimension, fastened together with a screw and bolt, and containing a 6 mm diameter white adhesive circle. 3–5 photographs were taken of the tongue in a flat plane. Photographs were taken with a Canon EOS Rebel T3i camera used in manual mode with the following settings: ISO 800, Aperture: 29 (F29), shutter speed: 1/200. The focus on the lens was set to automatic focus (AV mode). The procedure was carried out in a darkened interior room without windows or other ambient light, using a macro ring light attachment, Canon MR-14EX, which was set in ETTL mode at −1. Pictures were transferred to a computer and using Adobe Photoshop CS5.1, the images were enlarged and the number of FP within a circle of 6 mm in diameter was counted, for two areas, on the left and right of the midline of the tongue, near the tip. Previous research has found this to be the optimum area for counting FP. An average for both areas was obtained and this number converted to FP per cm². Two researchers independently counted each tongue.

Feeney E.L, & Hayes J.E. (2014). Exploring associations between taste perception, oral anatomy and polymorphisms in the carbonic anhydrase (gustin) gene CA6. Physiology & behavior, 128, 148-154.

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Implant Defect Measurement Protocol

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Initially, the absence of a buccal bone defect was verified after implant installation and a standardized photograph was taken. The camera was positioned on a tripod with an angulation perpendicular to the area of interest and a periodontal probe (PCP-UNC 15, Hu-Friedy, Chicago, USA). In addition, the position, lens magnification and framing of each photograph was standardized using the following equipment: EOS Rebel T5i reflex camera, macro lens (EF 100 mm f / 2.8L IS USM) and circular flash Mr 14ex (Canon inc, Tokyo, Japan); the values of 1/125 for shutter speed, F25 for aperture and ISO 100 were selected.
The number of buccal defects present in each group was counted. Further, the height, width, and area of the defect (Fig. 1) in the buccal and lingual aspect were measured with software (ImageJ—National Institutes of Health, Bethesda, USA). Measurements in pixels were converted to approximate values in millimeters using the periodontal probe as a reference.Fig. 1

Implant design used in this study and measurement of the defect height, width and area after placement in the bone ridge

Frizzera F., Spin-Neto R., Padilha V., Nicchio N., Ghiraldini B., Bezerra F, & Marcantonio E J.r. (2022). Effect of osseodensification on the increase in ridge thickness and the prevention of buccal peri-implant defects: an in vitro randomized split mouth pilot study. BMC Oral Health, 22, 233.

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Morphological Analysis of Rhabdomastix

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The morphological terminology adopted here essentially follows McAlpine (1981) . Designation of the wing veins is given in Fig. 1, and some special parts of the female terminalia of Rhabdomastix are referred to in Fig. 3 (cf. also figures in Starý 2003 , 2004 ). Female terminalia were prepared by boiling in a solution of 10% KOH and preserved in glycerine in a small plastic tube pinned below the associated specimen. Line drawings were made using a drawing tube (camera lucida) attached to a compound microscope. Measurements were made using an ocular grid. Live specimens were photographed in special boxes by a digital camera (Canon EOS 60D) with a macro lens (Canon MP-E 65 mm 1–5×) and a ring macro flash (Canon MR-14EX).

Starý J, & Roháček J. (2015). Rediscovery of Rhabdomastix (Rhabdomastix) incapax Starý, 2005 (Diptera, Limoniidae), a crane fly species flightless in both sexes and probably endemic to Sardinia. ZooKeys.

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Tongue Staining and Imaging Protocol

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The researcher stained the front section of participants’ tongues using blue coloring on a clean cotton swab. The participant rested his or her chin on a table-mounted chin rest, and held their tongue between a specially-constructed apparatus. This consisted of two 25 mm × 77 mm plastic slides (VWR International), fastened together with a screw and bolt, and containing a 6mm diameter circle (Figure 1). 3-5 photographs were taken of the tongue in a flat plane. Photographs were taken with a Canon EOS Rebel T3i camera (Canon, USA). The camera was used in manual mode with the following settings : ISO 800, Aperture: 29 (F29), shutter speed: 1/200. The focus on the lens was set to automatic focus (AV). The procedure was carried out in a darkened interior room without windows or ambient light, using a macro ring light attachment, Canon MR-14 EX, which was set in ETTL mode at -1.

Feeney E.L, & Hayes J.E. (2014). Regional differences in suprathreshold intensity for bitter and umami stimuli. Chemosensory perception, 7(3-4), 147-157.

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Quantitative Skin Color Analysis

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This technique is based on digital photography with a standard camera (Canon, EOS 1 with Compact Macro Lens, EF 50 mm) equipped with a circular flash (Macro Ring Lite, MR-14EX) fixed to a macro objective. By the use of a polarizing filter it is possible to eliminate the influence of the skin surface with the result that the skin color can be quantitatively determined. This means the visual color impression of the age spot is assessed and not the exact quantification of skin pigments such as melanin.

Choi W., Yin L., Smuda C., Batzer J., Hearing V.J, & Kolbe L. (2017). Molecular and histological characterization of age spots. Experimental dermatology, 26(3), 242-248.

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Topical Curcumin Nanoparticle Delivery Dynamics in CAM

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The curcumin in PBS at pH = 7.4 and in the polymeric nanoparticles was topically applied to the CAM via the silicone rings as 30 µL aliquots on ED9. The concentration of curcumin was maintained at 10 µM in the 30 µL solutions. The fluorescence of curcumin in CAM tissue was recorded with a digital camera (Canon EOS 6D II with Canon MP-E 65 mm f/2.8, macro lens, Canon, Tokyo, Japan) in intervals 0, 1, 3, 5, and 24 h after compound administration. The CAMs were illuminated using either white light (ring flash Canon MR-14EX, Tokyo, Japan) or custom-made circular LED light emitted at 405 nm. The fluorescence intensity was evaluated using Image J software (NIH, Bethesda, MA, USA). The red intensity of RGB images was normalized to the maximum values. Whole-image profile plots (ImageJ plugin) were derived each time after curcumin administration: Before administration and from 0 (right after administration) up to 24 h.

Datta S., Huntošová V., Jutková A., Seliga R., Kronek J., Tomkova A., Lenkavská L., Máčajová M., Bilčík B., Kundeková B., Čavarga I., Pavlova E., Šlouf M., Miškovský P, & Jancura D. (2022). Influence of Hydrophobic Side-Chain Length in Amphiphilic Gradient Copoly(2-oxazoline)s on the Therapeutics Loading, Stability, Cellular Uptake and Pharmacokinetics of Nano-Formulation with Curcumin. Pharmaceutics, 14(12), 2576.

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Standardized Photographic Protocol for Lesions

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All photographs of lesion sites were taken by single-lens reflex camera (EOS Kiss X5; Canon, Tokyo, Japan) equipped with an 18- to 55-mm macro lens (Canon) and macro ring light (MR-14 EX; Canon). The photographing conditions were as follows: the ISO film speed was AUTO, shutter speed was 1/125 s, and F-value was 8.0. Photos at visual inspection and the IOM were taken with a flash in a room with white light, and those for the AVM were taken without a flash and with the room light turned off.

Yamamoto N., Kawaguchi K., Fujihara H., Hasebe M., Kishi Y., Yasukawa M., Kumagai K, & Hamada Y. (2017). Detection accuracy for epithelial dysplasia using an objective autofluorescence visualization method based on the luminance ratio. International Journal of Oral Science, 9(11), e2-.

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Fracture Resistance of Intact Teeth

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This was the control group. The teeth were not sectioned.
The acrylic blocks containing all specimens (n = 53) were mounted in the universal testing machine (Instron). The load was applied to each tooth in a labial to lingual direction by means of a reinforced stainless-steel wedge at a speed of 1 mm/min. The force required to fracture the tooth was recorded in Newtons (N) using an onscreen calibration tool.
Fractured surfaces of all the teeth were photographed using a digital camera Canon 550D with EF-S 60 mm macro lens and flash MR-14EX at 1:1 magnification. The surface area of the fractured surface of crowns, embedded in the blocks, was measured using AutoCAD software in mm². The pressure required to fracture teeth was calculated dividing the Force (N) by area of the fractured surface (mm²). The results were tabulated into Microsoft Excel sheet and subjected to statistical analysis (SPSS - Statistical Package for the Social Sciences UNICOM Systems, Inc).

Karre D., Muppa R., Duddu M.K, & Nallachakrava S. (2017). Fracture resistance of reattached fragments using three different techniques with emphasis on vertical grooves and fiber-reinforced composite post: A novel technique. Journal of Conservative Dentistry : JCD, 20(6), 474-478.

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