K-50 with 28-80mm macro lens

zzxxcc_penthouse · 03-03-2020, 01:57 PM

Originally posted by paulh

The lens needs to be in the A position on the aperture ring. If it still doesnt work, clean the lens and camera contacts with a bit a alcohol.

" The lens needs to be in the A position on the aperture ring " Bingo, there is the F numbers. And i will clean it a little , seemed dirty when i took it off, Everything works now , Yipppee. Thank you.

**paulh** · 03-03-2020, 02:01 PM - **1 Like**

Originally posted by zzxxcc_penthouse

" The lens needs to be in the A position on the aperture ring " Bingo, there is the F numbers. And i will clean it a little , seemed dirty when i took it off, Everything works now , Yipppee. Thank you.

Yay - glad you got it sorted. It's a good little zoom, the exact same one I started with years ago.

zzxxcc_penthouse · 03-04-2020, 03:33 PM

Originally posted by zzxxcc_penthouse

Took the teleconverter off , now the 28-80 3.5 sigma actually works - the autofucus works, Wonder why previous owner had it on. But the it still shows F - - on the screeen . Thanks.

I read up on the Sigma 2X - 1:1 Tele-Macro Converter Supplementary Lens for pentax-, it does serve a purpose . The images were magnified.

zzxxcc_penthouse · 03-10-2020, 10:33 AM

Originally posted by zzxxcc_penthouse

I read up on the Sigma 2X - 1:1 Tele-Macro Converter Supplementary Lens for pentax-, it does serve a purpose . The images were magnified.

Dust spots,

I can see why people like the zoom lens , or the primes, both have their purposes. anyways, I notice i have spots appearing in my photos , that means dust right? A few spots here an there, but manageable , in pihotoshop i use the spot healing brush tool. Noticed sometimes my camera produces photos will come out dark , have no idea what is going on, Be nice sometimes just to get a newer camera or get it cleaned. If you know what you are doing with this camera or other model, it can produce some really good photos/

**paulh** · 03-10-2020, 11:08 AM

Sounds like dust on the sensor, which can happen when you change lenses. Do a forum search on sensor cleaning, and try using the camera's dust removal function.

You also may be a victim of aperture block failure, which can afflict certain Pentax models, especially the K-30 and K-50. Again, do a forum search for this widely-discussed problem. Good luck!

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03-03-2020, 01:57 PM	#16
zzxxcc_penthouse Junior Member Join Date: Feb 2020 Photos: Gallery Posts: 44 Original Poster	Originally posted by paulh The lens needs to be in the A position on the aperture ring. If it still doesnt work, clean the lens and camera contacts with a bit a alcohol. " The lens needs to be in the A position on the aperture ring " Bingo, there is the F numbers. And i will clean it a little , seemed dirty when i took it off, Everything works now , Yipppee. Thank you.

03-03-2020, 02:01 PM - 1 Like	#17
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,301	Originally posted by zzxxcc_penthouse " The lens needs to be in the A position on the aperture ring " Bingo, there is the F numbers. And i will clean it a little , seemed dirty when i took it off, Everything works now , Yipppee. Thank you. Yay - glad you got it sorted. It's a good little zoom, the exact same one I started with years ago.

03-04-2020, 03:33 PM	#18
zzxxcc_penthouse Junior Member Join Date: Feb 2020 Photos: Gallery Posts: 44 Original Poster	Originally posted by zzxxcc_penthouse Took the teleconverter off , now the 28-80 3.5 sigma actually works - the autofucus works, Wonder why previous owner had it on. But the it still shows F - - on the screeen . Thanks. I read up on the Sigma 2X - 1:1 Tele-Macro Converter Supplementary Lens for pentax-, it does serve a purpose . The images were magnified.

03-10-2020, 10:33 AM	#19
zzxxcc_penthouse Junior Member Join Date: Feb 2020 Photos: Gallery Posts: 44 Original Poster	Originally posted by zzxxcc_penthouse I read up on the Sigma 2X - 1:1 Tele-Macro Converter Supplementary Lens for pentax-, it does serve a purpose . The images were magnified. Dust spots, I can see why people like the zoom lens , or the primes, both have their purposes. anyways, I notice i have spots appearing in my photos , that means dust right? A few spots here an there, but manageable , in pihotoshop i use the spot healing brush tool. Noticed sometimes my camera produces photos will come out dark , have no idea what is going on, Be nice sometimes just to get a newer camera or get it cleaned. If you know what you are doing with this camera or other model, it can produce some really good photos/

03-10-2020, 11:08 AM	#20
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,301	Sounds like dust on the sensor, which can happen when you change lenses. Do a forum search on sensor cleaning, and try using the camera's dust removal function. You also may be a victim of aperture block failure, which can afflict certain Pentax models, especially the K-30 and K-50. Again, do a forum search for this widely-discussed problem. Good luck!