Dead pixels and yellow discolouration, banding, smudges, stretch marks on iMac Retina 5K 27″ display panel

I have been using the iMac Retina 5K 27″ (late 2014) for about 1.5 years.

Recently, I have noticed a tiny clump of dead pixels appearing on the retina 5K display panel, somewhere around the centre top portion. It’s definitely not dust nor stains, and the clarity of the dead pixels changes as you vary your viewing angle; it’s clearest when you view it straight on.

Apart from the dead pixels, there is also yellow discolouration or yellow banding along the border of the retina display. This phenomenon is similar to the reports on the screens of iPhone 5S where users saw some greenish-yellow banding/discolouration on their displays. From the photo I took of the display, the banding/discolouration is not very obvious, but there also seems to be some smudges or stretch marks in the lower corners.

From doing some searches online, I understand that Apple applies certain criteria (and here) when deciding whether a unit is fit for repair/servicing. The dead pixel clump definitely looks like more than 16 pixels to me so keeping fingers crossed here.

Red circle shows the location of the clump of dead pixels. You can also see that the screen isn't uniform with some banding at the sides and stretch marks in the corners.
Red circle shows the location of the clump of dead pixels. You can also see that the screen isn’t uniform with some banding at the sides and stretch marks in the bottom corners.
Close up view of the clump of dead pixels. Definitely seems to be more than 16 pixels.
Close up view of the clump of dead pixels. Definitely seems to be more than 16 pixels.

 

Fortunately, I bought an AppleCare Protection Plan just before the initial 1-year warranty period expired. Apple support suggested sending in the iMac Retina 5K to a Apple service centre and I will just be doing that after clearing up some backlog and doing a full backup. Hopefully, I can get the display exchanged as soon as possible with minimum downtime!

Cold waves | Singapore Travel Photographer

One of my favourites from our road trip to California. I still remember facing the cold howling wind on this evening at Baker Beach. I liked how they added nicely to the foreground texture. Upon reflection, I must have been pretty crazy to travel all the way here and position myself so close to the crashing waves. Needless to say, my equipment was drenched…

 

This was also one of the works which has received an award at the International Color Awards.

Golden Gate Bridge

Double Nominees in International Color Awards Photography Competition | Singapore Travel Photographer

This came in the mail today.

8th Annual International Color Awards envelope-2

Very honoured to have received double nominees at the International Color Awards Photography Competition!

8th Annual International Color Awards certificate-2

 

Below is the press release:

1429783594157

8TH ANNUAL INTERNATIONAL COLOR AWARDS HONORS PHOTOGRAPHER WEIZHONG DENG FROM SINGAPORE

LOS ANGELES, 18 April 2015 – Professional travel photographer Weizhong Deng of Singapore was presented with the 8th Annual International Color Awards Double Nominee titles in the categories of Architecture and Nature at a prestigious Nomination & Winners Photoshow streamed Saturday, April 18, 2015. This was not the third time that Weizhong has received awards at this competition.

The live online gala was attended by over 10,000 photography fans around the globe who logged on to watch the climax of the industry’s most important event for color photography.

 

“It is an incredible achievement to be selected among the best from the 7,358 entries we received this year,” said Basil O’Brien, the awards Creative Director. “Weizhong’s “Awashed” and “Dawn,” exceptional images entered in the Architecture and Nature category, represents contemporary color photography at its finest, and we’re pleased to present him with the title of Nominee.”