Thank you for adding yet another tool for people to use !

 

Update 2017/8/26: V1.2 released:
1) Added with Unit Option (Metric vs. Imperial/US).
2) Ajusted checkboxes' position to make room for imperial information.
3) Improved handling for out of boundary data input.

Update 2017/9/2:
1. bug fix: lock/unlock picture size, the unit for min/max projection distance does not change.
2. Add Sony 2017 new models: VPL-VW260ES/VPL-VW760ES.

 

Update 2017/9/7:
Add Epson 2017 new models: Home Cinema 2100/Home Cinema 2150.

 

Update 2017/9/21: V1.3 released:
Added a "Print" button with optimized printable info: pic & key data in one page.
Print out calculation result for the record!

 

Any chance you could add a brightness calculation similar to the ProjectorCentral.Com calculator?

This would be a big help as I don't think the ProjectorCentral.com calculator is working correctly.

 

It is doable, but the baseline data (lumens at wide angle end and telephoto end) will have to depend on 3rd party like ProjectorCentral's measurement.
I will look into this and feedback to you.

 

Update 2017/9/23: V1.4 released:
1) Bug fix for incorrect calculation when zoom slider is not at telephoto end or wide angle end.
2) Switch zoom slider direction (1.0x means wide angle instead of telephoto).
3) Enlarge print button.
4) Minor bug fix.

 

Update 2017/10/2: V1.5 released :
1) Added aspect ratio option 16:9 and 2.35:1.
2) Bug fix for divide zero issue when base projection offset is 0.
3) Bug fix for incorrect handling of radio boxes being checked multiple times.
4) Adjusted text layout and data pannel margin for better user experience.

 

2017/10/9 update: V1.6 released:
Added horizontal lens shift feature.

 

2017/10/15 update: V1.7 released:
Optimized print layout for lens shift feature: all information is presented within one A4 paper.

 

2017/10/23 update: V1.8 released:
1) Added Luminance Calculation feature - the final piece to the puzzle. Besides default values summarized from 3rd party reviews, you can input your own calibrated lumen, max zoom loss, lamp aging loss and screen gain. ft/lamberts value is calculated in real time.
2) Added the 3rd Picture Size option: Anamorphic 2.35:1 - With the up/down arrows, you can specify the cinemascope ratio from 2.35 to 2.40 to match your own screen ratio.

 

2017/12/24 update: V1.9 released:
1) Room size, projector position and mounting method will be kept as user specified value, when changing brand/model.
2) When no brand/model selected, the "default" projector will have 300% v-shift range and 200% h-shift range, which can be useful to experiment with required lens shift range.
3) Imperial infomation (e.g. 6'12") added to picture diagonal/width/height, picture to floor and projection offset.

 

Update 2018/1/1: V2.0 released:
1) For Zoomed 2.35:1 option, limit the zoom/lens shift range to allow for re-zoom to 16:9 pic with the same height.
2) Disabled Zoomed 2.35:1 option for projectors have no enough zoom and lens shift range.
3) Highlighted above zoom and lens shift limitation for Zoomed 2.35:1 option with a new information window.
4) For picture front view, use darker blue to highlight the 2.35:1 picture inside the 16:9 picture, and vice versa.
5) Added a new line into Picture Size section, to show diagonal of the 2.35:1 picture inside 16:9 picture, and vice versa.

 

2018/3/26 update: V2.1 released:
1) Added "Viewer" in side view (height 1200mm/47.2in, can be dragged back and forth, can be hidden), thus user can determin if someone seated is in the way of the light path.
2) Revised algorithm for Ultra Short Throw projectors - the light cone now comes from inside the case instead of front panel.
3) For Ultra Short Throw projectors, picture diagonal size defaults to 100".

 

hey is there a way to adapt this tool or export the data to show projectors and how large their vertical shift range is?

I want to look at all PJ's in a certain price range for vertical shift capabilities. Most places either have a yes or no but not more specific - I would think your calculator would have to have more specific inputs.

 

Hi, I am also considering adding statistic features to Jack Liu projection calculator, such as, given a specific vertical shift range and then list all projectors that support the shift range.
However it's not a simple task, for now you may have to manually choose projectors to check - sorry about that!
Thanks for your comment anyway!

 

Excellent thank you!

Does it show the viewing distance for the "person" somewhere?

 

2018/3/26 update: V2.1 released:
1) Added "Viewer" in side view (height 1200mm/47.2in, can be dragged back and forth, can be hidden), thus user can determin if someone seated is in the way of the light path.
2) Revised algorithm for Ultra Short Throw projectors - the light cone now comes from inside the case instead of front panel.
3) For Ultra Short Throw projectors, picture diagonal size defaults to 100".

Enjoy new features from JACK LIU Projection Calculator!

========================================================================================

JACK LIU Projection Calculator is developped by myself (dupin67).

Since Dec 1, 2016, it has been visited by Chinese users for more than 26000 times.
Now it's available in English!

This calculator provides the unique feature - both Zoom and Lens Shift calculation for home theather projectors in the market.

Calculator uses the data from user manual and official information and supports popular brands/models.

If the model you are interested is not in the database, or you want to report a bug, please write a post here - I will try best to reply.
Suggestions are appreciated!
I'm not a native speaker so please forgive me if anything not accurate.
You can also contact me by email jack.liu@reviewtranslations.com.

Enjoy this intuitive and powerful JACK LIU Projection Calculator !

Best Regards,
Jack

Thank you for your ongoing contribution to the AVS Projector Forum, it is greatly appreciated.

 

Hey guys, after months of late night efforts,
JACK LIU Projection Calculator V3.0 released today:
1) Application re-written with React Framework for exceptional portability.
2) Display "Viewing Distance" in side view.
3) Multiple UI enhancements/adjustments for better user experience, include:
* "Diagonal" input and "Projection Distance" input has been enhanced with runtime Side View/Front View update for up/down arrow pressing
* "Reset All" button has been added so user could go back to default state to experiment with the "default" projector.
* "Luminance Calculation" has been moved down under "Instruction" and "Information" so less confusing for first time user.

 

Hey guys, after months of late night efforts,
JACK LIU Projection Calculator V3.0 released today:

Just wanted to thank you, this is a great calculator, I've been using it to help
figure out projector to get to replace my old Sony HW10.

 

Great calculator. This is actually helping me plan my hush box for my RS3000 so I thank you for that.

But I do have a question....RS3000/NX9 is shown rated at 1800lumens. Is that a post calibration rating or an error? The calibrated rating of 1260lumens actually sound about right from what I have seen but is that based on the 1800 listed or the 2200 actual lumens?

 

Hi Killroy,

This is an error, NX9 shall be 2200lm. Have corrected the data. And Thanks for pointing this out.

Note the calibrated lumen is empirical data summarized by previous model reviews. So it is just a reference. If you can find more accurate data, please input directly.

 

Hi guys, today another update for JACK LIU Projection Calculator!
Mobile mode is supported! User expeirence much better when using on your mobile phone.

2019/3/28 update: v3.2 released:
1) Optimized for mobile phone (portrait mode). The calc will switch to Mobile Phone Mode automatically.
2) Bug fix: projector position hasn't been saved correctly when moving projector by setting "Diagonal" field or "Proj. Distance" field.

2019/3/24 update: v3.1 released :
1) Bug fix: lens shift doesn't reset to neutral position after model changed.
2) Bug fix: lens shift slider cannot set to extreme position.
3) Resoved IE and Safari compability issues reported by users.