Spraying cellulose paint,can spray technique alter colour ?

[Deleted]

A question for any experienced sprayers.
I've been spraying a rear wing on my rover (Burnt grey) . I gave it a top half respray some while back but wasn't happy with an old repair showing through in certain lights so I did it again.
Although very slight the wing didn't really match,I was using the same paint,same thinning and gun. Standing to one side the colours seemed to match perfectly but standing and looking at 90 degrees (I hope this makes sense) there was a slight difference in shade in direct sunlight. Rather than simply spray the wing up to the door shut I did it yet again,this time misting in the colour to get a soft transition from old to new paint. This proved much better.
Ive been told that its possible to alter a paint colour slightly by holding the gun at different angles,I can see that this would make a difference with metallics etc but does it make sense with 'straight' colours?
Ive painted sections of the car before and not had this problem,I know the paint was mixed well so I'm curious as to the reason.

[enigmas]

Hi Kev, if you are repainting a panel or even a small section you need to blend the new paint into the old...usually by spraying a thinned coat over the original painted areas. It's really about fooling the eye... an optical trick. Matching fresh paint with old is all about illusion!

[Deleted]

Jun 12, 2018 23:14:49 GMT enigmas said:

Hi Kev, if you are repainting a panel or even a small section you need to blend the new paint into the old...usually by spraying a thinned coat over the original painted areas. It's really about fooling the eye... an optical trick. Matching fresh paint with old is all about illusion!

Thanks for that,pretty much the same advice I got last night in a phone call from someone else.(it was worth posting just to renew an old friendship) I thought that using a door shut was the best way of masking any colour change but I'm now proved wrong.
Ive bought some old panels (not P5) to practice on,never too old to learn as they say.

[Roy of the Rovers]

The colour primer you use can have a bearing on the top coat shade. You should always try and match what was on there originally.