Pinnacles Desert

[ReaPerMan]

Quick trip to the Pinnacles

details for all are Canon 6D Samyang 14mm F2.8 ISO 6400 30 secs on Ioptron SkyTracker

Thanks for looking

Paul :thumbsup:

[iceman]

Nice shots, Paul!

I'm heading there in under 2 months so this is great inspiration!

[sheeny]

:thumbsup:

Wish I had the time while I was there to try some nightscapes...

Al.

[ReaPerMan]

You can't go wrong here! It's a beautiful place, Grahame has people asking him why he keeps going back, I have no doubts why. There is a very calm atmosphere about the place. Dark, quiet and awesome.



It gives you an excuse to come back Al :D

[redomatic]

There is no such a thing for us!!! Jealous and great work.

[matt34]

Nice shots Paul, looks like a great spot for nightscapes. The first one is my favourite

[ReaPerMan]

Thanks Matt. I still have a lot of day shots and twilight pics to post yet.

[gregbradley]

Some nice shots there. I wonder though if you got a bad copy of the lens as its showing coma in the corners and elongations despite tracking and only 30 seconds I don't see in other Samyang 14mm/6D shots.

Samyang lenses are good but their QC is not. I had to return a bum Samyang 24mm F1.4 before I got a good one and I have read that sort of report a number of times with their lenses.

I'd test yours out in daylight shots/focus test charts. Perhaps a decentred lens.

Greg.

[Ross G]

Great looking photos Paul.


Ross.

[ReaPerMan]

Thanks for the advice Greg. I have noticed some of the problems you mentioned and I have a program called PTLens which is supposed to fix Pincushion and Barrel distortion. it provides a number of adjustments including the centering. I need to experiment with it a bit more as I haven't ventured beyond the default settings yet. It would appear that the old adage of you get what you pay for is in full effect.



Thanks Ross.

[gregbradley]

[QUOTE=ReaPerMan;1003688]Thanks for the advice Greg. I have noticed some of the problems you mentioned and I have a program called PTLens which is supposed to fix Pincushion and Barrel distortion. it provides a number of adjustments including the centering. I need to experiment with it a bit more as I haven't ventured beyond the default settings yet. It would appear that the old adage of you get what you pay for is in full effect.


Depending on who you bought it from you may find them quite accomodating. I bought mine online and expected some problems as they said you had to return within 2 weeks of ordering. Silly really as they took 6 weeks to deliver it to me. I sent an email saying this and that the images showed bad star elongations on one side and sharp on the other. I sent an example image and they replaced it. It took another 6 weeks but the next lens was good.

The problem you are seeing is not pincushion or mustache distortion. Its coma. Distortion would simply be a wavy type look to the foreground. I am not sure if its even noticeable in a nightscape. I have seen lots of Samyang 14mm F2.8 images and never noticed the distortion. I think nightscapes are very forgiving of that and very hard on coma and chromatic aberrations in the extremities that are often forgiven in terrestial images. What I see on the net about lenses is the elements can be decentred and this causes this type of defect. I guess thats why you pay big bucks for high quality Nikon, Canon and Zeiss lenses.

Greg.

[ReaPerMan]

[QUOTE=gregbradley;1003702]

Thanks Greg
Like you have said it's sharp on one side and elongated on the other. I have had the lens for some time I just wasn't using it enough to see the problem. I don't think that they would exchange it now. I might look for a higher quality lens.

[ourkind]

Beautiful captures Paul.