Lens test chart needed

**SirGuinea** · 04-27-2023, 11:52 AM

I'm working on a project involving my collection of lenses, and I'm looking a for an image file of a test chart with high enough resolution to fit an A3 piece of paper.

I'm currently using an A4 test sheet of this image I found. It's been ok for now, but I wonder if I can see differences better with a larger image and also one with more color for more comparisons.

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Wasp · 04-27-2023, 01:02 PM

If you print four or nine of them and stand further back, it will be more of a challenge for camera and lens. I have a set of Paterson test charts from the 80s that are used like that.

**hjoseph7** · 04-27-2023, 01:14 PM

Amazon has one for sale here: amazon.com: DGK Color Tools High Resolution 8.5x11?tag=pentaxforums-20&" Chrome SD Professional Lens Test Chart, 3-Pack : Electronics

**pres589** · 04-27-2023, 02:34 PM

There's always a full sheet of news print...

**AstroDave** · 04-27-2023, 03:25 PM

Your limit may be the resolution of your printer. I have an old, old 1200 dpi LaserJet II and wish I had even higher resolution.

I made a test chart by printing enlarged portions of the chart here: ISO 12233 Test Chart to paste up a larger, properly scaled-up version and then shooting it to fill the frame.

You can enlarge the pdf in e.g. PhotoShop to almost arbitrary size and dpi.

**SirGuinea** · 04-27-2023, 05:25 PM

Originally posted by Wasp

If you print four or nine of them and stand further back, it will be more of a challenge for camera and lens. I have a set of Paterson test charts from the 80s that are used like that.

Thanks for the suggestion, I havn't thought about splitting it up into seperate sheets

---------- Post added 04-27-23 at 05:29 PM ----------

Originally posted by AstroDave

Your limit may be the resolution of your printer. I have an old, old 1200 dpi LaserJet II and wish I had even higher resolution.

I made a test chart by printing enlarged portions of the chart here: ISO 12233 Test Chart to paste up a larger, properly scaled-up version and then shooting it to fill the frame.

You can enlarge the pdf in e.g. PhotoShop to almost arbitrary size and dpi.

I’ll try your suggestion, the chest chart looks better

---------- Post added 04-27-23 at 05:31 PM ----------

Originally posted by hjoseph7

Amazon has one for sale here: amazon.com: DGK Color Tools High Resolution 8.5x11?tag=pentaxforums-20&" Chrome SD Professional Lens Test Chart, 3-Pack : Electronics

It was something I’ve thought of first, but the dutch amazon website listed it as 44 euros, which I found pretty unreasonable and strange why it was so high compared to the listing you posted

**K-Three** · 04-27-2023, 06:02 PM

Links to A2 and A3 Charts in the body of this article:
Free lens testing chart download - Photography News

**UncleVanya** · 04-27-2023, 08:37 PM

Originally posted by hjoseph7

Amazon has one for sale here: amazon.com: DGK Color Tools High Resolution 8.5x11?tag=pentaxforums-20&" Chrome SD Professional Lens Test Chart, 3-Pack : Electronics

The reviews aren’t great. Color accuracy and print quality only so so.

---------- Post added 04-27-23 at 11:46 PM ----------

Another free option:
https://www.bobatkins.com/photography/technical/lens_sharpness.html

krgroothuis · 04-28-2023, 12:22 AM

Originally posted by K-Three

Links to A2 and A3 Charts in the body of this article:
Free lens testing chart download - Photography News

the links gives error 404 Page not found !

The article is there ,but the links not !

JohnX · 04-28-2023, 02:15 AM

Quote:

It was something I’ve thought of first, but the dutch amazon website listed it as 44 euros, which I found pretty unreasonable and strange why it was so high compared to the listing you posted

On the UK Amazon site it's £30.25. Not sure what the £ to Euro exchange rate is, but includes free delivery.

Can't see a large letter posted from UK to Netherlands containing these charts attracting much in the way of vat or duty, especially if the contents of the envelope are just paper/card items of notional value being sent between private individuals/addresses.

If the Amazon UK price is good, know anyone here in the UK who could help?

**UncleVanya** · 04-28-2023, 04:44 AM

Originally posted by JohnX

On the UK Amazon site it's £30.25. Not sure what the £ to Euro exchange rate is, but includes free delivery.

Can't see a large letter posted from UK to Netherlands containing these charts attracting much in the way of vat or duty, especially if the contents of the envelope are just paper/card items of notional value being sent between private individuals/addresses.

If the Amazon UK price is good, know anyone here in the UK who could help?

That item is also sold at b&h. And the reviews there aren’t great either.

**K-Three** · 04-29-2023, 09:01 AM

Originally posted by krgroothuis

the links gives error 404 Page not found !

Here are the links, they each go straight to a download when I hit them in Safari:
https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A2testchart.jpg
https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A3testchart.jpg

**UncleVanya** · 04-29-2023, 10:21 AM

Originally posted by K-Three

Here are the links, they each go straight to a download when I hit them in Safari:
https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A2testchart.jpg
https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A3testchart.jpg

404 for me also.

---------- Post added 04-29-23 at 01:22 PM ----------

Originally posted by K-Three

Links to A2 and A3 Charts in the body of this article:
Free lens testing chart download - Photography News

The links inside the article work fine for me.

**K-Three** · 04-29-2023, 03:34 PM

Originally posted by UncleVanya

404 for me also.

Weird

04-28-2023, 12:22 AM	#9
krgroothuis Forum Member Join Date: Nov 2008 Location: Winsum, the Netherlands Posts: 86	Originally posted by K-Three Links to A2 and A3 Charts in the body of this article: Free lens testing chart download - Photography News the links gives error 404 Page not found ! The article is there ,but the links not ! Last edited by krgroothuis; 04-28-2023 at 12:23 AM. Reason: supplement

04-28-2023, 02:15 AM	#10
JohnX Pentaxian Join Date: Jul 2009 Location: London Posts: 1,116	Lens charts Quote: It was something I’ve thought of first, but the dutch amazon website listed it as 44 euros, which I found pretty unreasonable and strange why it was so high compared to the listing you posted On the UK Amazon site it's £30.25. Not sure what the £ to Euro exchange rate is, but includes free delivery. Can't see a large letter posted from UK to Netherlands containing these charts attracting much in the way of vat or duty, especially if the contents of the envelope are just paper/card items of notional value being sent between private individuals/addresses. If the Amazon UK price is good, know anyone here in the UK who could help?

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04-27-2023, 01:02 PM	#2
Wasp Pentaxian Join Date: Mar 2017 Location: Pretoria Photos: Gallery Posts: 4,661	If you print four or nine of them and stand further back, it will be more of a challenge for camera and lens. I have a set of Paterson test charts from the 80s that are used like that.

04-27-2023, 01:14 PM	#3
hjoseph7 Site Supporter Join Date: May 2014 Location: Minnesota Photos: Gallery \| Albums Posts: 2,047	Amazon has one for sale here: amazon.com: DGK Color Tools High Resolution 8.5x11?tag=pentaxforums-20&" Chrome SD Professional Lens Test Chart, 3-Pack : Electronics

04-27-2023, 02:34 PM	#4
pres589 Site Supporter Join Date: Jan 2014 Location: Wichita, KS Photos: Albums Posts: 4,529	There's always a full sheet of news print...

04-27-2023, 03:25 PM	#5
AstroDave Loyal Site Supporter Join Date: May 2007 Location: Flagstaff, Arizona Posts: 1,637	Your limit may be the resolution of your printer. I have an old, old 1200 dpi LaserJet II and wish I had even higher resolution. I made a test chart by printing enlarged portions of the chart here: ISO 12233 Test Chart to paste up a larger, properly scaled-up version and then shooting it to fill the frame. You can enlarge the pdf in e.g. PhotoShop to almost arbitrary size and dpi.

04-27-2023, 05:25 PM	#6
SirGuinea Site Supporter Join Date: Mar 2023 Posts: 27 Original Poster	Originally posted by Wasp If you print four or nine of them and stand further back, it will be more of a challenge for camera and lens. I have a set of Paterson test charts from the 80s that are used like that. Thanks for the suggestion, I havn't thought about splitting it up into seperate sheets ---------- Post added 04-27-23 at 05:29 PM ---------- Originally posted by AstroDave Your limit may be the resolution of your printer. I have an old, old 1200 dpi LaserJet II and wish I had even higher resolution. I made a test chart by printing enlarged portions of the chart here: ISO 12233 Test Chart to paste up a larger, properly scaled-up version and then shooting it to fill the frame. You can enlarge the pdf in e.g. PhotoShop to almost arbitrary size and dpi. I’ll try your suggestion, the chest chart looks better ---------- Post added 04-27-23 at 05:31 PM ---------- Originally posted by hjoseph7 Amazon has one for sale here: amazon.com: DGK Color Tools High Resolution 8.5x11?tag=pentaxforums-20&" Chrome SD Professional Lens Test Chart, 3-Pack : Electronics It was something I’ve thought of first, but the dutch amazon website listed it as 44 euros, which I found pretty unreasonable and strange why it was so high compared to the listing you posted

04-27-2023, 06:02 PM	#7
K-Three Loyal Site Supporter Join Date: May 2014 Location: Pugetopolis, WA Photos: Gallery Posts: 938	Links to A2 and A3 Charts in the body of this article: Free lens testing chart download - Photography News

04-27-2023, 08:37 PM	#8
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,402	Originally posted by hjoseph7 Amazon has one for sale here: amazon.com: DGK Color Tools High Resolution 8.5x11?tag=pentaxforums-20&" Chrome SD Professional Lens Test Chart, 3-Pack : Electronics The reviews aren’t great. Color accuracy and print quality only so so. ---------- Post added 04-27-23 at 11:46 PM ---------- Another free option: https://www.bobatkins.com/photography/technical/lens_sharpness.html

04-28-2023, 04:44 AM	#11
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,402	Originally posted by JohnX On the UK Amazon site it's £30.25. Not sure what the £ to Euro exchange rate is, but includes free delivery. Can't see a large letter posted from UK to Netherlands containing these charts attracting much in the way of vat or duty, especially if the contents of the envelope are just paper/card items of notional value being sent between private individuals/addresses. If the Amazon UK price is good, know anyone here in the UK who could help? That item is also sold at b&h. And the reviews there aren’t great either.

04-29-2023, 09:01 AM	#12
K-Three Loyal Site Supporter Join Date: May 2014 Location: Pugetopolis, WA Photos: Gallery Posts: 938	Originally posted by krgroothuis the links gives error 404 Page not found ! Here are the links, they each go straight to a download when I hit them in Safari: https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A2testchart.jpg https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A3testchart.jpg

04-29-2023, 10:21 AM	#13
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,402	Originally posted by K-Three Here are the links, they each go straight to a download when I hit them in Safari: https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A2testchart.jpg https://www.photographynews.co.uk/wp-content/themes/photographynews/images/A3testchart.jpg 404 for me also. ---------- Post added 04-29-23 at 01:22 PM ---------- Originally posted by K-Three Links to A2 and A3 Charts in the body of this article: Free lens testing chart download - Photography News The links inside the article work fine for me.

04-29-2023, 03:34 PM	#14
K-Three Loyal Site Supporter Join Date: May 2014 Location: Pugetopolis, WA Photos: Gallery Posts: 938	Originally posted by UncleVanya 404 for me also. Weird