Ansi 70 Grey Ral Equivalent
Loren Swaggr
Yes Mike, as you can see from the table below, the DMT Coarse with a grit size of 45 microns is equivalent to about a P320 sandpaper which for woodwork finishing would be regarded at least as the high end of medium. Notice that the just about equivalent in micron size EZY-LAP is in fact designated as medium.
In order to hog off significant amounts of metal such as for correcting bad bevels on 2nd hand chisels, I found it necessary to invest in the DMT Extra Extra Coarse of 120 microns & also the DMT Extra Coarse of 60 microns to step up to my normal sharpening regime of DMT C to DMT F to DMT XF to chromium dioxide impregnated leather strop.
Since I wrote the original post I have added extra columns that list the approximate correlating sandpaper grades where the P numbers are FEPA Paper grades & the A numbers are guesstimates of the corresponding ANSI grades using the -sizes-ansi/particle-size-conversion-chart-ansi/ table. Here in the Land of OZ we use the European FEPA P scale for sandpaper so other than looking at published tables on the net, I have no experience of the ANSI scale so some corrections might be in order there.
Since I wrote the original post I have added extra columns that list the approximate correlating sandpaper grades where the P numbers are FEPA Paper grades & the A numbers are guesstimates of the corresponding ANSI grades using the washingtonmills.com/guides/grit-sizes-ansi/particle-size-conversion-chart-ansi/ table. (Insert before washingtonmills to view the link.) Here in the Land of OZ we use the European FEPA P scale for sandpaper so other than looking at published tables on the net, I have no experience of the ANSI scale so some corrections might be in order there.
Epson has introduced a new 3-chip 3LCD projector named the EpiqVision Flex CO-W01 Portable Projector, retailing at $429.00. They describe it as the perfect companion for both business necessities and an enhanced entertainment experience. The lamp-based EpiqVision Flex CO-W01 offers WXGA (1280 800) native resolution but supports video display formats up to Full HD (1920 x 1080). The projector can deliver 3000 lumens of brightness for a compact package.
Epson's EpiqVision Flex CO-W01 is designed to cater to the evolving hybrid work culture where employees split their work week between home and the office. This kind of lifestyle, including full-time work from home, can be significantly elevated with devices tailored specifically for professional and leisure purposes. Epson proposes that the EpiqVision Flex CO-W01 projector model perfectly balances the needs of professional presentations and the pleasure of an immersive home movie experience.
Epson states that the EpiqVision Flex CO-W01 has the capacity to project images over 300 inches. I do not have a 300 inch projector screen, but when put to the test in my projector lab, it exhibited superb performance at 100 inches. The vertical and horizontal keystone correction of the EpiqVision Flex CO-W01, combined with its zoom and manual focus capabilities, makes it an ideal choice for individuals who frequently need to relocate the projector.
It's important to highlight that Epson evaluates the white output of the EpiqVision Flex CO-W01 using ISO Lumens, as defined by the International Organization for Standardization, rather than ANSI Lumens, the standard set by the American National Standards Institute. Both ISO Lumens and ANSI Lumens are utilized in the projector industry as units to measure the brightness, or light output, of a projector. While they serve the same basic function, their measurement methodologies do differ. For more detailed insights on the distinctions between ANSI and ISO Lumens, please refer to the Brightness section of this review.
Color brightness, or Color Light Output (CLO), is a standard that can really help you choose the best projector. This metric looks at color, as well as the traditional white, when measuring brightness. Technically, the CLO method doesn't favor any one technology type (3LCD, DLP, LCoS...) over the others, but it does show that design techniques that those technologies may choose to incorporate, may cause significant changes in color performance while having little effect on whites. For example, two DLP projectors, otherwise very similar, but having very different color wheel designs, will show significant differences in CLO measurements, and very significant differences when viewing the same content rich in color.
For evaluation purposes, Epson provided Projector Reviews with an EpiqVision Flex CO-W01 projector. To test the EpiqVision Flex CO-W01, I connected a variety of devices, such as a Kaleidescape Compact Terra 6TB movie server, a Kaleidescape Strato C 4K movie player, an Apple TV 4K, and a PlayStation 5 using certified 48Gbps HDMI cables. For this review, the Epson EpiqVision Flex CO-W01 was projected onto a 100-inch (16:9 ratio) Elite Screens Aeon fixed frame projection screen, equipped with Elite's patented Edge Free technology and the CineWhite UHD-B screen material.
Including the feet, the EpiqVision Flex CO-W01 measures 11.6 in x 3.4 in x 8.3 in (W x H x D) and weighs approximately 5.3 lbs. Owing to its compact dimensions, the EpiqVision Flex CO-W01 offers great portability, enabling quick relocation within a business establishment or a home, or even stowing it in a backpack for on-the-go use. All that's required is a power source to plug the projector into, making it incredibly versatile and user-friendly.
Whether you're engaged in today's hybrid work environment that involves dividing your time between working from home and the office, or you're always on the go as a military member, a frequent business traveler, an RV enthusiast, a student living in a dorm, or a homeowner valuing projector portability, the Epson EpiqVision Flex CO-W01 could be the perfect fit for your needs. The EpiqVision Flex CO-W01 enables you to showcase presentations to colleagues during work hours or arrange a movie night with loved ones in the evening. The expansive and more immersive viewing it offers truly enhances the experience.
The front of the EpiqVision Flex CO-W01 hosts the lens, remote receiver, and a foot release lever that allows you to lower the front adjustable foot. The projector's top includes the speaker, the power on/off button, status indicator, and a manual focus lever. On the unit's right side (as viewed from the front), you'll find an HDMI ARC (Audio Return Channel) port, a USB-B port, a USB-A port, and the air intake vent.
Meanwhile, the rear of the projector houses the AC power inlet and a security cable attachment point; although its plastic construction may not afford significant theft deterrence, it will support the weight of the projector if it falls from a ceiling mount. Finally, the CO-W01's left side features the air exhaust vent and a Kingston security slot.
While the Epson EpiqVision Flex CO-W01 chassis comes with an internal speaker, it also provides an option for users to connect the projector to an external soundbar or an AV Receiver via the HDMI ARC feature for an elevated audio experience.
The EpiqVision Flex CO-W01's remote control includes all the typical buttons you'd expect on a modern projector remote control, such as power on/off, keystone, source search, enter, volume, mute, and a directional pad. Yet, it stands out with a unique quick access Color Mode button.
The projector's Color Modes are specifically designed to provide optimal brightness, contrast, and color for a wide array of viewing environments and image types. They offer you the option to select a mode that suits your particular image and setting, or to experiment with the various modes available.
Similar to several portable projectors I've assessed, the remote control of the EpiqVision Flex CO-W01 does not feature backlighting. This can pose a challenge when trying to identify and press the correct buttons in low-light conditions.
The remote's white body with dark grey button icons further complicates visibility in the dark. It remains uncertain how Epson expects users to distinguish these dark grey remote control icons in dim light without resorting to some external light source, such as a cell phone flashlight or room light.
Auto Picture Skew Correction will help you get the perfect image. Depending on how you orient the projector to the wall, the projector will analyze the projected image and correct the vertical geometry of the picture for an ideal viewing experience.
In addition to the throw distances we've already outlined, Epson has developed a complimentary online Projector Throw Distance Simulator for those seeking further details. This tool provides placement information for an extensive range of screen sizes and aspect ratios, complementing the throw distances we have already listed. Simply select the CO-W01 for the model name, and Epson provides you with all the information you need.
I should emphasize that factors like the distance between the projector lens and the projection surface, the video format, and the zoom setting can significantly influence the quality and size of the projected image. In my experience, the projector delivered enough brightness to maintain image quality at 100 inches, even with slight ambient light entering the room after I partly opened my blackout shade.
The Epson EpiqVision Flex CO-W01 is quite straightforward in its functionality, and its menu system reflects this simplicity. You can navigate the menu using the provided remote control. The menu comprises six main sections: Image, Settings, Network, ECO, Info, and Reset.
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