All Forum Comments
Comment by Spad posted on Silver System at 09/11/2023 - 18:24
I'd love K1 or K3iii Mono.... sadly they're well out of financial reach....
I am just jealous
I am just jealous
Comment by Spad posted on Silver System at 09/11/2023 - 17:27
I hate you
Comment by Spad posted on Silver System at 09/11/2023 - 13:54
Love pictures of pets....
Wonder is he'or she is thinking... i am gonna shove that camera so far up yer back side, you'll be able to take photos out yer gob!
Wonder is he'or she is thinking... i am gonna shove that camera so far up yer back side, you'll be able to take photos out yer gob!
Comment by Spad posted on Close-Ups with DA 21mm at 09/11/2023 - 13:53
I am thinking shag too.... are they not related?
Comment by Spad posted on A bit small for a Cormorant. at 09/11/2023 - 13:51
MikeInDevon wrote:
Questions - Guided exposures? Exposure time per image? F stop? ISO? My guess this is the full APS image size as it a large nebula.
I've used the K version of this lens wide open on bright comets unguided with nice results.
Cheers
Mike
Mike.... Info as requested Questions - Guided exposures? Exposure time per image? F stop? ISO? My guess this is the full APS image size as it a large nebula.
I've used the K version of this lens wide open on bright comets unguided with nice results.
Cheers
Mike
The camera and lens were mounted on an unguided, but tracking Sky-Watcher Star Adventurer 2i Pro. The image is also cropped, it's roughly two thirds of the original image.
Exposure info - 18 x 60 secs, f4, iso1600
Stacked and stretched in Siril (free and highly recommended), then PP'd in PS.
What has really impressed me about this lens, is its really manageable CA wide open. Even before PP it was really good. Well worth investing in one of these for astro work.
I am planning more shots with it, and when I figure out how how to rig it with a guide scope and cam, it will be a guided session.
This evening I managed to capture some images of the cosmos, in a brief gap in the clouds.
The North American Nebula to be precise!
This was taken with a recently acquired Pentax M 200mm f4 lens. It was on my K5ii and shot with a Cokin Clearsky LPF. It's 18 images stacked.
The North American Nebula to be precise!
This was taken with a recently acquired Pentax M 200mm f4 lens. It was on my K5ii and shot with a Cokin Clearsky LPF. It's 18 images stacked.
Cokin Z Pro should be ok... I have used P Series on my Sigma 10-20mm and get Vignetting at just before 12mm. I actually use X Pro at 10mm as I read about some using Z Pro on the same lens at 10mm, even tho they were advised Z Pro would work, they still got vignetting.
I'd say take you camera and lens to a stockist and try them. Might save you from fannying about.
I'd say take you camera and lens to a stockist and try them. Might save you from fannying about.
Comment by Spad posted on Filter system DFA 16-50 at 06/11/2023 - 00:28
bjolester wrote:
I had the SMC Pentax (last version) 67 300mm lens and used it with both 120 film and with an adapter on the Pentax K-5. The lens is known as a weak performer in the Pentax 67 system, part of the problem is lack of tripod support and shutter shake. Optically the lens is okay. On the K-5 the 67 300 produced acceptable results, but when compared to my FA 300/4.5 it was clearly inferior, both in terms of sharpness, contrast and colour reproduction. The 67 300 is also very heavy to carry around. I sold mine some years ago. The updated 67 300 EDIF is in another league though, a highly sought after lens amongst Pentax 67 users, and probably a superb performer also on DSLRs.
I did some research and I see what you mean.... Unless you get the green star or a 645 one, with the the exception of certain 200mm models, they're crap!I had the SMC Pentax (last version) 67 300mm lens and used it with both 120 film and with an adapter on the Pentax K-5. The lens is known as a weak performer in the Pentax 67 system, part of the problem is lack of tripod support and shutter shake. Optically the lens is okay. On the K-5 the 67 300 produced acceptable results, but when compared to my FA 300/4.5 it was clearly inferior, both in terms of sharpness, contrast and colour reproduction. The 67 300 is also very heavy to carry around. I sold mine some years ago. The updated 67 300 EDIF is in another league though, a highly sought after lens amongst Pentax 67 users, and probably a superb performer also on DSLRs.
Think I will wait till I have available funds!
Comment by Spad posted on 67 300mm f4 at 24/10/2023 - 12:22
Beautiful piece of kit, LennyBloke. Oh, wait, I have one too...