New camera invaded

Started Feb 12, 2019 | Discussions thread
OP Oiche Senior Member • Posts: 2,045
Re: New camera invaded

gravelhopper wrote:

Good point - most times I use the widest aperture with my lenses. I will do a test with a narrow aperture. Tough to me it is not obvious, why it makes a difference. Partcles on the sensor should block light, no matter how directed / diffuse incoming light is. With particles inside a lens, the difference is obvious.

You won't see debris or dust particles within the lens, that is why a lens can have dust, debris and even fungus and to no obvious detriment. The DA* 60-250 I just bought has debris in it, maybe even a spider in it, now a dead one 😀 I might try and take out the front element sometime to remove it but not really necessary.

 Oiche's gear list:Oiche's gear list
Pentax K-70 Pentax smc DA* 60-250mm F4.0 ED (IF) SDM Pentax smc DA 40mm F2.8 Limited Samyang 14mm F2.8 ED AS IF UMC HD Pentax DA 15mm F4 ED AL Limited +1 more
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