The Amazing Sony A1/A7/A9/APS-C & Anything else welcome Mega Thread!

I'd be surprised if dust on the lens shows a dust bunny like that, unless it's on the rear element. How did you test, and what aperture were you at?

Ok, looks like I do have to buy a sensor cleaning kit. Firstly, I took a couple of shots of the sky and didn't see the spot. Just now I've done the proper test. Put it to the smallest f/stop on my 16mm and 56mm lenses which is f16. Set it to manual and infinity and pointed at a white wall, took the shots and moved the camera in a circular motion during the shots. In Lightroom, I went to visualise spots. With my 16mm lens attached and looking through the EVF, I noticed a circular blob, pretty much a perfect circle, situated in the top third and dead centre of my camera's rule of thirds grid. This shows up in the first screenshot. I then wiped the rear element and it's gone as can be seen in the second screenshot. The rest of the dust spots are the same for both lenses. They look more like water stains on the sensor than dust, don't you think? Would you say any of them line up with the spot on my tower bridge photos? You can click to enlarge the thumbs.

16mm with circle



16mm circle gone



56mm

 
Question for nandbytes. I was searching amazon for sensor cleaners, in particular VSGO, but came across this UES APS-C kit which is good value.


Then I searched the forums to see what people here have bought and came across a post where you'd bought a UES full frame sensor kit a couple of months ago, also with 14 swabs and 15ml fluid. Was just wondering what you thought of it, if you think it's good enough quality to buy?
 
Question for nandbytes. I was searching amazon for sensor cleaners, in particular VSGO, but came across this UES APS-C kit which is good value.


Then I searched the forums to see what people here have bought and came across a post where you'd bought a UES full frame sensor kit a couple of months ago, also with 14 swabs and 15ml fluid. Was just wondering what you thought of it, if you think it's good enough quality to buy?
yep works just fine :)
 
yep works just fine :)

Excellent! Also, when I do it, should I put enough pressure just so the swap flexes/bends a bit or no pressure at all? And should I hold the camera facing down while doing it to stop more dust falling on it, or face up?
 
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Excellent! Also, when I do it, should I put enough pressure just so the swap flexes/bends a bit or no pressure at all?
no pressure what so ever.
a light single swipe in one direction at 45 degrees angle and then another wipe in the opposite direction.
Toss the swab, if your sensor is still not fully clean use another swab.
Not worth trying cheap out with sensor cleaning since any mistake will cost you more than £15 your swabs cost you.
 
no pressure what so ever.
a light single swipe in one direction at 45 degrees angle and then another wipe in the opposite direction.
Toss the swab, if your sensor is still not fully clean use another swab.
Not worth trying cheap out with sensor cleaning since any mistake will cost you more than £15 your swabs cost you.
Ah, so very lightly and no flexing. When wiping in the other direction for the second pass, presumably turn the swap to the unused side? Is it necessary to hold the camera above me and face down while swabbing to stop more dust falling onto the sensor or is that overkill?
 
Ah, so very lightly and no flexing. When wiping in the other direction for the second pass, presumably turn the swap to the unused side? Is it necessary to hold the camera above me and face down while swabbing to stop more dust falling onto the sensor or is that overkill?

yes your second pass should be from unused side.
I don't hold it face down simply because its harder for me to clean upside down. even if the odd dust spec lands after cleaning I can generally blow it off with a rocket blower.
Once again a dust particle is better than a scratched sensor.
 
yes your second pass should be from unused side.
I don't hold it face down simply because its harder for me to clean upside down. even if the odd dust spec lands after cleaning I can generally blow it off with a rocket blower.
Once again a dust particle is better than a scratched sensor.
in my experience half the dust that ends up on the sensor is actually from the rear element of the lenses.
I have made it a habit to blow dust off the rear element of lenses whenever possible and that's really helped with reducing the dust on my sensor.

Great, thanks for the advice. I change between the 16 and 56mm quite a lot while out and about so it's not surprising I've picked up dirt on the sensor. I generally hold the camera face down while removing a lens and putting a different one on and rocket blowing, and sometimes I rocket blow the rear element before mounting it, but will make a habit of trying to do it every time. It's odd that my dust bunnies look more like rings so I'm thinking maybe some water droplets dried on the sensor.
 
Great, thanks for the advice. I change between the 16 and 56mm quite a lot while out and about so it's not surprising I've picked up dirt on the sensor. I generally hold the camera face down while removing a lens and putting a different one on and rocket blowing, and sometimes I rocket blow the rear element before mounting it, but will make a habit of trying to do it every time. It's odd that my dust bunnies look more like rings so I'm thinking maybe some water droplets dried on the sensor.

You could try some decent double sided tape inside the rear lens caps.
 
You could try some decent double sided tape inside the rear lens caps.
That's a good idea. But anyway, I'm pretty sure my sensor has dried water rings and not dust bunnies.
 
Yep, seen that one before. Brilliant. :D
There is also a guide on here.

Featuring our very own @Cobra so it must be trustworthy.
 
There is also a guide on here.

Featuring our very own @Cobra so it must be trustworthy.

Just read the opening post. Excellent. :LOL:
 
There is also a guide on here.

Featuring our very own @Cobra so it must be trustworthy.
PMSL how the hell did you find that?
 
Of course like all good "how to's" there is a part II (y)

 
Ok, looks like I do have to buy a sensor cleaning kit. Firstly, I took a couple of shots of the sky and didn't see the spot. Just now I've done the proper test. Put it to the smallest f/stop on my 16mm and 56mm lenses which is f16. Set it to manual and infinity and pointed at a white wall, took the shots and moved the camera in a circular motion during the shots. In Lightroom, I went to visualise spots. With my 16mm lens attached and looking through the EVF, I noticed a circular blob, pretty much a perfect circle, situated in the top third and dead centre of my camera's rule of thirds grid. This shows up in the first screenshot. I then wiped the rear element and it's gone as can be seen in the second screenshot. The rest of the dust spots are the same for both lenses. They look more like water stains on the sensor than dust, don't you think? Would you say any of them line up with the spot on my tower bridge photos? You can click to enlarge the thumbs.

16mm with circle



16mm circle gone



56mm

Maybe try a rocket blower and the inbuilt sensor clean first?

Edit, just seen the other posts, ignore this :lol:
 
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I've never used cleaning pads. I just use pec pads and eclipse fluid and wrap the pec pad around a slice cut from an old credit card and tape it in place. It's effective and it's very cheap. I think in about 10 years I'm maybe on my second or maybe third pack of pec pads and my second bottle of fluid.

I agree with blowing the rear of lenses, it's something I always do and I always place lenses rear end downwards.
 
Worth mentioning, if there IS dust on the lens, you will never see it as spots on a photo. You only see dust spots when they are on the sensor and you stop down a little.
 
I just found out a really awesome feature on Pentax for astro (at least wide field stuff)

basically one of the newer bodies like K1ii has a "tracker" builtin that works with the IBIS and cameras GPS to track stars for long exposures.

Sony you suck!! not a single useful feature beyond that awesome tracking :-/
 
I just found out a really awesome feature on Pentax for astro (at least wide field stuff)

basically one of the newer bodies like K1ii has a "tracker" builtin that works with the IBIS and cameras GPS to track stars for long exposures.

Sony you suck!! not a single useful feature beyond that awesome tracking :-/

My K-1 has it built in but you can buy an addon module for around £150 that fits on the hotshoe for some of the older models.

Useful for shots requiring up to about 50 seconds, no star trails.
 
I need to spend £20 on Amazon to get free shipping for the £14.99 UES sensor swabs and fluid, so need to add £5.01. Is it worthwhile sticking this £6.99 lenspen in the basket?


Buy something with it thats not going to be in stock for a few weeks then cancel once the swab kit has been delivered.
 
My K-1 has it built in but you can buy an addon module for around £150 that fits on the hotshoe for some of the older models.

Useful for shots requiring up to about 50 seconds, no star trails.

I am very tempted to buy K-1 and have it astro modified to use with manual lenses.
Does the K-1 have live view composite like Olympus for example?
 
I need to spend £20 on Amazon to get free shipping for the £14.99 UES sensor swabs and fluid, so need to add £5.01. Is it worthwhile sticking this £6.99 lenspen in the basket?


Have been using those lenspens for about 10 years I find them very useful much better than using a cleaning cloth.
 
Have been using those lenspens for about 10 years I find them very useful much better than using a cleaning cloth.

Thanks Tommy. So I could use the carbon brush to wipe away smears and any water spots that get on the lens as effectively as a zeiss wipe? Does the one I linked look genuine? Most of the customer reviews are 5 stars but one person said the the carbon/ rubber end came off and another says some strands of hair fell out.
 
Thanks Tommy. So I could use the carbon brush to wipe away smears and any water spots that get on the lens as effectively as a zeiss wipe? Does the one I linked look genuine? Most of the customer reviews are 5 stars but one person said the the carbon/ rubber end came off and another says some strands of hair fell out.

I have never had any bother with any of mine and a couple of them I have had for about 6-7 years or so.

They work much better than the wipes. Just breath on the lens to cause a little condensation before you use them. They work great!

Must have accessory for me.
 
I need to spend £20 on Amazon to get free shipping for the £14.99 UES sensor swabs and fluid, so need to add £5.01. Is it worthwhile sticking this £6.99 lenspen in the basket?

Definitely get a lens pen. Just done a count-up, and there are 3 on the desk, one in the car, and one in each of my camera bags. No idea how I amassed so many, but they do work.
 
I purchased a used Sony grip for my A9 from Park cameras a couple of weeks ago but to cut a long story short they totally messed up and either sold me something that they didn't have or had already sold it and didn't bother to take it off the web site. Anyway, i'm not a fan of third party grips and I'm not paying a couple of hundred for a used one so started looking at the little metal cages. Found this one on Amazon, was advertised as fitting the A7 III but not the A9 as the A7 doesn't have a control knob on both sides and the cage had a hot shoe but noticed it was screwed on so took a chance.

£19 delivered from Amazon ... makes the A9 so much better to handle.


A9 Cage
by Michael Pursey, on Flickr
 
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