Search results for 'sensor cleaning' - page 171
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
The most popular one of the lot is the Tamron 90mm. It can be used either AF or manual, gives a good working distance and is exceptionally sharp. You can find them on E Bay for about £150 - but make sure it is the Di version (Digital). The earlier ones were for film cameras and can reflect light bac...
Posted by davidwozhere on 03/01/2019 - 00:25
12-24 On Full Frame
In answer to David's question - neither. The gallery picture is only a minor crop to straighten, rather than crop to APSC. The 12-24 is not ff compatible but it's not bad to use. Sharpness to edges is surprisingly ok. Centre sharpness is plenty good enough. So knowing the limitations then it...
Posted by DrOrloff on 05/01/2019 - 22:44
DA 18-55 WR
I've mentioned this previously, but kit lenses from other brands are typically crap. Like really bad. Yes Pentax includes this lens in it's kits, but it's miles ahead of the traditional 'kit lens'. ........ From experience I don't agree with this. My non WR DA 18-55 pentax was ok, had to stop d...
Posted by walt on 11/02/2019 - 12:44
Pentax 150-450mm F4.5-5.6 with 1.4x converter
Just remember the 1.4x is not suitable for FF. Depends what you mean by "not suitable". I regularly use the 1.4x convertor with the 150-450, Tamron 70-200 f2.8 and the Tamron 90 f2.8 on my K1. It works well with all these lens with only a small amount of vignette in the four corners. This I usually ...
Posted by bforbes on 26/06/2019 - 22:57
50MM PRIME LENS OR NOT
Anstonian. The 50mm prime lens made its name during the film days. Film camera has a 35mm sensor. A K3II has a crop sensor.so a 35 mm will give you 50mm to full frame. One feature of 50mm on full frame is that . what the photographer sees through the viewfinder is similar to what the human ...
Posted by theonenadeem on 19/07/2019 - 19:15
50MM PRIME LENS OR NOT
The 50mm prime lens made its name during the film days. Film camera has a 35mm sensor. A K3II has a crop sensor.so a 35 mm will give you 50mm to full frame. One feature of 50mm on full frame is that . what the photographer sees through the viewfinder is similar to what the human eye sees. A 3...
Posted by User_removed on 19/07/2019 - 21:24
Lens for music gigs
In my experience of gig shooting wide is better than long. Manual is better than zoom. Full frame is better than crop sensor. Lens speed is everything as lighting is never at a premium. Pre plan the shot, pre focus the shot and wait for it to happen..!! I to would choose 35mm f1.4.
Posted by stub on 10/08/2019 - 10:51
Cleaning SMC-A 50mm f/2.8 Macro?
Recently procured one of these for a decent price (were it clean), so notified the seller who issued a generous partial refund (so more decent given the condition), yet I want to clean it. The outer elements are both immaculate, no scratches etc. but the inner elements are harbouring a fair amount o...
Posted by Benz3ne on 24/10/2019 - 13:18
Cleaning SMC-A 50mm f/2.8 Macro?
As always I recommend Alan Marlow ....
Posted by Mike-P on 24/10/2019 - 13:47
Cleaning SMC-A 50mm f/2.8 Macro?
As always I recommend Alan Marlow .... Brilliant! Thanks for the speedy, helpful reply Mike. :D
Posted by Benz3ne on 24/10/2019 - 14:32
Pentax lenses are weird but wonderful
The FA20-35 is hardly ever off my K-1, It's a very versatile, compact option that doesn't need dinner plate sized filters. It's a very wide zoom, CA will always be a factor (even the ££££ modern lenses still suffer from it). Yes, it's plasticky and the focussing ring isn't the best, but it's reasona...
Posted by johnha on 10/03/2020 - 18:50
DA lenses on K-1 II
After picking up a K-1 II at a good price, I finally got round to checking the usable area for my DA lenses on full frame sensor. The list I've seen was based on using the whole area, but I wanted to know how much benefit I might get from the FF view and cropping. Ideally I'd just buy FF lenses, b...
Posted by mikeprotts on 13/04/2020 - 16:06
DA lenses on K-1 II
If you only effectively use the APS-C area of the K1 sensor then you are using less than 16 megapixels so would be better off with a camera having a smaller sensor of 24mp over the same area. I can understand checking out the DA lenses as it makes sense to use what you already have but at some time ...
Posted by RobL on 14/04/2020 - 09:22
DA lenses on K-1 II
The DA* 300mm on its own is FF compatible. It is, but the 1.4x converter is not. The combination does provide good results, and I could use in crop mode, but there is a lot of extra sensor area that I can use as long as I'm prepared to crop later.
Posted by mikeprotts on 14/04/2020 - 10:30
RIP Q 06 - What next?
I was wondering whether it would be possible to use the plastic DA 35 or DA 50 with an adapter to give you two tele lengths with a small and light set of lenses. The reason I mentioned the F 50 1.7 is because I've got it. DA35 - yes, I've also got that one and it's certainly light weight. As far as ...
Posted by Lubbyman on 02/05/2020 - 13:34
RIP Q 06 - What next?
Hi, My 06 stopped focusing towards the end of a cycling holiday in Germany last year. I tried the old chestnut of cleaning the contacts. I used a cotton bud soaked in isopropyl alcohol. Despite them looking clean the bud picked up a lot of dark debris from each contact. I suspect the plastic insu...
Posted by Bertie54 on 10/05/2020 - 12:38
M, A & FA 50mm lens prices?
as well as the surge in mirrorless cameras with users adapting old classics to their new bodies. That’s interesting, is it because the new mounts are larger? I seem to recall that the Canon and Nikon DSLR mounts are smaller than K-mount and also adding an adapter would put the lens at the right dist...
Posted by RobL on 28/06/2020 - 13:08
M, A & FA 50mm lens prices?
Mirrorless has a very short distance from lens to the sensor (flange distance) so any lenses designed for a longer distance can simply be put on a long enough tube. It's pretty cool since almost any lens ever produced can be adapted onto a mirrorless body as long as the adapter is correct.
Posted by HarisF1 on 28/06/2020 - 14:20
New standard lens
Hi Just bought myself a Pentax K70. Virually all my lenses are from the film era with only one, a Pentax 15mm f/4 ED as a modern lens. I have been looking for a lens I can use as a standard. A focal length of 35mm would seem about right as that would be about 52mm on the APS-C sensor. I have looked...
Posted by Joats on 22/07/2020 - 14:37
Pentax 12-24mm on K1?
No good for me then! Here it is for anyone else with a non crop sensor then £265!! https://www.wexphotovideo.com/pentax-12-24mm-f4-da-ed-al-if-lens-used-1759865/?mkwid=siq7dRdyz_dm&pcrid=310558797787&kword=&match=&plid=&product=1759865&pgrid=60947808679&ptaid=aud-407807923907:pla-5599486029...
Posted by cardiffgareth on 03/12/2020 - 21:01
